They've always been here, these ones are just the latest iteration of the same old thing.
Just like the far right. You're insane if you think the people that voted Trump into office are dying off. They breed quickly afterall.
And those individuals tend to be far more susceptible to indoctrination because they grow up in an environment where it is all they know, and reinforced daily.

The two far sides of each party are great at idealism, but the reality is most Americans prefer a more moderate approach to governing, with things based more on functional common sense instead of irrational idealism.
But hyping moderate policies doesn't keep people glued to their news media feeds and outlets.
Sensationalism does, which is why these people who really have done nothing special garner so much press. They're a convenient focal point for someone like Trump who needs to always have an enemy of America coming to destroy his base's simple rustic way of life. And he knows there are enough people in his thrall that will vote for him so long as he keeps to the same message, no matter how stupid it is to the rest of us.

It's not about content or substance anymore, the media just wants a headline.
And for all the headlines, the country still just keep plugging away.
Policies will lean left at times, and it leans right at times, but never to the degree all the fear mongering on each side says it will. All the far left/right candidates promises that they say they will do if they are in office never really come to pass. Medicare for all, free college, guaranteed income. It just will not happen, and if you're voting for someone on those type of BS promises you're not much better than someone who voted for Trump based on his lies.

The Affordable Care Act was not overturned despite Republicans having majorities in both houses and the white house, and having spent the better part of 8 years saying that was their only goal. Because talking points are far easier than reality.

I do find Omar quite dislikable. Same with AOC. Because they have no record in Congress worth standing on, and I have no respect for anyone that spends their time tweeting about things rather than doing things. Sadly, this is just what American politics is devolving into. A perpetual lowering of the bar to the lowest common denominator, where what you say matters far more than what you do. I would blame Trump, but he's just the result of the decline, not the cause.

I'm not 100% sure when it started. But social media has been nothing but a pox on humanity in my opinion since it allows people to seek out validation of whatever opinion they hold and have it reinforced, while at the same time completely disregarding the existence of contrary view points, so I'll use that as a convenient scapegoat. The less exposed people are to differing view points and able to insulate themselves in a world that only reinforces their own, the more certain they become of the righteousness of their own, no matter how objectively stupid they are.

That and 24 hours news channels that began not trying to report news, but to manufacture it from bull shit, just to keep people watching.

Eh. At least there's Thera.