Now here's the challenging part of this. What if the tables turn? What if, 10 years from now, it's not conservatism that is viewed as evil and unacceptable, but liberalism? What if it is your own political beliefs that are painted as socially unacceptable and justifying retaliatory measures such as Sandmann faced?
Here's the thing. Conservatism isn't evil in itself, but currently it has embraced a lot of evil ideas, in that those ideas project anyone that isn't conservative as being evil just for wanting to be treated equally.
Conservatism has embraced White Nationalism, Racism, Sexism, Homophobia, and Transphobia. It has embraced the anti-science movements in climate change and now medicine. It tries to install religious laws all while claiming that it doesn't have to follow any law than it doesn't want to because of religious reasons. Its representatives are openly hypocritical and openly lie, while its supporters don't just embrace and celebrate those lies, but defend them even when they are indefensible. Conservatives call non-conservatives demons, the devil's army, and worse, all while trying to claim that they are the moral ones, and they blame all of their own faults and errors on others rather than taking actually responsibility for their own actions, something that is a major part of conservatism. A lot of conservatives are now to some degree supporters of the QAnon movement which openly calls for the massacre of Democrats and their leadership. And these are just a few of the things that conservatism in the US has become. (and it's leaking out into the rest of the world too!)
If in ten years Progressive Socialism has gone down that path, then yes, anyone still embracing it should be painted as socially unacceptable. When you do things that are socially unacceptable, you should be prepared to accept the consequences of those actions regardless of your politics.
Instead of whinging about how horrid people are being, maybe consider that when you openly support evil, people are going to consider you a part of that evil. And yes that includes Sandmann who by wearing a MAGA hat was promoting the evil of Trump and his policies and so while he may not have been the aggressor in that case, he doesn't get a pass any more than someone that waves a confederate flag or wears a swastika should get a pass.
This is the thing you and other conservatives seem to be unable to realise. When progressives and liberals do things that are socially unacceptable, they get turned on by other progressives and liberals and have to suffer the consequences. When conservatives do so, instead of other conservatives taking the lead and correcting them, they instead embrace them and leave it up to the non-conservatives to have to provide the consequences for those actions. Heck, look at the current state of the GOP. Instead of the GOP censuring Trump for creating such anger about a stolen election that wasn't, and then pointing that anger directly at Congress and his own VP resulting in the worst insurrection in modern times, the GOP is trying to censure those few Republicans willing to actually take a stand against Trump's reprehensible actions. Cancel culture is merely the delivery of consequences for those reprehensible words and actions by the other side because your own side refuses to take responsibility and do it themselves.
You want to end "Cancel Culture" then stop whinging like a bunch of victims because others want equality and stop embracing the bad actors in Conservatism instead of dealing with them yourselves when they cross clear anti-social lines. Stop standing beside them and expecting non-conservatives to either tolerate the intolerance shown to them or to have to deal with the crap themselves. Because non-conservatives are sick of having to put up with or clean up the **** that conservatives keep dumping on them.
