Let's get one thing out of the way up front. It is not illegal to get dirt from foreign sources on your political opponent. It is only illegal if you are involved in a criminal conspiracy of some kind.(i.e You assist in the hacking of information.) That is why this entire conversation is ridiculous.
Perhaps think back to the actual points made about what what actually wrong? For example, Trump repeatedly tried to obtain illegally obtained materials from the Russian government and outright asked the Russians to commit crimes to aid him on national television (and made it perfectly clear that he wasn't joking about that when interviewed right after). Crimes that they
immediately started trying to do. The main ridiculous thing about this conversation is the caricature of the problems identified that the GOP has been pushing as their propagandists have gone all in with a strategy of lying about, distorting, and distracting from the actual things of importance.
The Left wants to give the impression that getting dirt from foreign sources is criminal or an impeachable offensive, but only when Republicans do it. When Democrats do it, it is perfectly fine.
That is a right-wing caricature of the truth. I touched on that a little above, but I'm going to be very clear here. These false equivalences and aspersions preached by the GOP propagandists are BS.
If Don Jr had received dirt on Hillary from Russian sources then decided to approach the FBI their response would have been, "Now we have proof you were colluding with the Russians. It is jail time for Don Jr!"
That depends on what, exactly, Jr had done with it by then. Still, it's far, far more likely that the FBI would have given him the chance to mitigate/nullify the crime and exonerate himself, given the situation that they'd be facing there, even if they didn't just let him off the hook entirely and work with him to figure out what he was legally allowed to do. That is, of course, assuming that this was after his “If it’s what you say, I love it, especially later in the summer.” The actually appropriate course of action would be to contact the FBI about the offer in the first place and discuss the matter with them. To be quite clear, somewhat similar situations have happened in the past.
Gore's campaign, for example, immediately took similar materials to the FBI. In a similar vein, in Georgia 2018, multiple outside parties contacted the campaign of Democrats about serious vulnerabilities in the election infrastructure. Instead of exploiting such to cheat, the Democrats took it to the FBI - and were nonsensically sued by the Georgia Republicans for doing the right thing.
The FBI were co-conspirators in a plot to spy-on and then launch a coup to overthrow the Trump presidency. The FBI was not to be trusted.
This doesn't pass even basic scrutiny, especially when it comes to basic questions like whether Jr (and Trump and every other one of those involved in the Trump Tower meeting and all the rest of the many connections with the Russians that the Trump campaign lied about repeatedly) would have had any reason to believe that the FBI wasn't to be trusted.
Page: God trump is a loathsome human.
Strzok: Omg an idiot
Page: He's awful
Strzok: God Hillary should win 100,000,000 - 0
Page: “He's not ever going to become president, right? Right?!”
Strzok: “No. No he won’t. We’ll stop it.”
Page: “There is no way he gets elected.”
Strzok: "I want to believe the path you threw out for consideration in Andy's office that there's no way he gets elected — but I'm afraid we can't take that risk. It's like an insurance policy in the unlikely event you die before you're 40…."
An insurance policy does not prevent a disaster from occurring. It is a hedge in case a disaster does happen. The disaster, of course, to Strzok and Page was Trump being elected President. Then on election day the paramours went completely off the rails.
Again, you're not addressing the points actually made. You're just adding more cherry-picked material that you think supports your narrative.
Strzok: Omg this is ******ng terrifying
Page: Figure I need to brush up on Watergate.
Why does Lisa Page need to brush up on Watergate unless she is looking for a way to impeach a duly elected President that she hates? They could call upon the "insurance policy" to hamstring the President or launch a coup to overthrow his Presidency. This is what happened.
Alternately, one could take a peek at Trump's long list of times when he has been documented to have broken the law, was continuing to break the law, his relationships with organized crime, and his demonstrated personality (I could go on, but any single one of those would be serious cause for concern, let alone all of them at once) and figure out the obvious truth that it was virtually certain that he would be committing crimes, some of which would be quite serious, while in office. Which, indeed, he has been, to virtually no one's surprise.
p.s. The fact the FBI signed off on the FISA application for Carter Page is evidence of endemic corruption.

No. It's really not, regardless of how much the GOP propagandists try to distort the picture and use it as a distraction. There are legitimate concerns to be raised when it comes to FISA in general, perhaps, but that the FBI signed off on the application for Carter Page is not one of them.
Do you actually believe that Democrats support anarcho-tyranny?
What was the origin of the FBI's Crossfire Hurricane investigation? Was it the Steele dossier or George Papadopoulos's meeting with Joseph Mifsud? Currently, the latter story is the official one. So if they determine that Joseph Mifsud is really a Russian agent privy to the goings on of Russian intelligence, then yes, I will reevaluate. But I want answers on international man of mystery Mifsud.
I'm generally a bit wary of citing the Daily Beast, but... here's
a rather well-sourced article on Mifsud and his relations to Russia that you may find to be of some limited interest.
Still, it's likely worth pointing out, yet again, that for the purposes here, whether Mifsud is or is not actually a Russian agent is a red herring. Rather, the question is whether the FBI had legitimate cause to investigate at all, given that they're not omniscient. With that said, signs point very, very firmly to them having legitimate cause.