It blew me away when the ok symbol somehow became a white supremacist symbol.

I couldn't believe people would actually allow white supremacists to have so much power over them that they'd circumvent such a benign symbol.

If my meme history is correct, the okay symbol was created as a troll on 4chan, and the media took the bait

You are correct. It was the beginning of the modern ‘clown world’ movement in memery.

That's unfortunate, I know it had consequences for atleast 1 person who didn't understand the implications (I'm thinking of the driver who got recorded making the symbol).

Same thing with white milk.

>Firing/boycotting someone for doing nothing wrong, not even for something "offensive"

Just an observation: You are "cancelling" the opinions of those who do the "cancelling." In terms of the OP, you may or may not agree with the opinion of the person who did the firing, but it was based on someone being offended. Whether or not that offense was justified, or a good enough reason to fire someone, is a different question.