Human have always done this, so it's no big deal. Not worth talking about.
You know what else isn't new? Racism, sexism, murder, slavery, thievery... Yep, it's nothing new, why would we ever bother to spend any time talking about those things and the negative impact they have on people and society as a whole?
And that actually makes the polar opposite point of what you seem to think it does.
If something was actually bad, then we already started figuring out it's bad a long time ago. We didn't need to wait for some republican think-tank to come up with the buzzword for this election, to even start debating whether murder or thievery are bad.
Hell, even slavery, there have been people saying it's bad for as long as we have a written history.
Aristotle actually explicitly addresses objections of anti-slavery philosophers, which tells us that they already existed. Before Christ.
Racism? Yeah, you only need to look back at Rome for an example of people who were 100% convinced that anyone's children can be just as good as Romans. Anyone, of any race, could become a citizen by serving in the auxilia. Even slaves could become freedmen, and their children could become citizens, with the same rights and privileges as any Roman. At least one such barbarian's kid became
emperor.
Plus, unlike Greeks, which mostly used the trope of the slave giving a monologue about how he's just as good as his masters as a comedy trope (you know, same as having a one-legged guy talk about how he could win the marathon like anyone else), the Romans start using it as an honest opinion as soon as they start having theatre.
And that's going all the way back to 8'th century BCE for assimilating other people and races, and for theatre use as far back as they had theatre, a couple of centuries later.
And generally, even after the Romans, we start having serious anti-racism arguments in Europe around the year 1500 or so.
Sexism? Again, people start having proto-feminist ideas already in BC times. Stoics for example already maintained that women are just as capable intellectually as men. Again, that's Before Christ times.
Now this didn't really result in a lot more rights for women in the ancient world, and even a lot of Stoics didn't quite practice what they preached, but the idea is there. A lot of people were already figuring out that that discrimination isn't really justified.
If, by contrast, you need some proud bigot twits to tell you that you should be angered that a fellow proud bigot got "cancelled", before it's even worth discussing... yeah, no, it's NOT on par with murder and theft
