As another anecdote, I've had the same ad targeting for this last week or so. (Which is really unfortunate timing.) At some point I must've clicked on the wrong article while seeing what the "other side" was up to. And now my feed is full of tacticool insurrectionist chic.
The most disconcerting to me was an ad showcasing a "tactical hooded trench coat"[0], with the model holding an AK in the FB ad. I mean, nobody is going hunting, or defending their home, with their tactical hooded trench coat. Seemed pretty squarely targeted at the aspiring insurrectionist crowd.
Don't get me wrong, I'm all for letting people buy whatever strange clothes they want. If I have any point here it's that maybe FB doesn't get to claim the moral high ground when they're pushing ads using AKs as props, targeted at the crowd that stormed the capital (also, they need to fix their algorithm if they're pushing them to me).