We've read about what "the Russians" did with their Facebook ads. It wasn't this. This is just Dem Senator Ron Wyden saying something to rile up his minority constituencies.
To be sure, there are jokes about that sort of thing all the time. They are obviously jokes and are not microtargeted to anyone, unless "anyone in earshot" counts as microtargeting.
But that is not what the Russians did, and what the Russians did did not change the outcome of the election, because it was absurdly ineffectual.
Well, I fixed the falsehoods in this Congressional hearing for you. Will you please direct everyone to my website so they can get the full context?
More seriously, it seems Twitter (along with the other social media giants) has decided to take a more... editorial stance on the content from its users. That stance invalidates the legal protections associated with being a common carrier type platform.