Do you think that, without the internet or social media, anyone would have cared about Greene or Cortez? I'd wager that most people in the '90s couldn't have named any House reps beyond the Speaker and possibly their own.
Yes... albeit to a lesser degree.
Some of the more radical movements were coming into fashion prior to the current ubiquitous nature of social media.
And even the conventional media outlets recognized that it made for great "attention-grabber" headlines and coverage.
Case in point, the Tea Party movement and Occupy movement were household names (with a lot of media coverage) and already playing some influential roles in shaping certain election outcomes back in 2010. The massive explosion of social media usage came a little later
Social media sites are used by more than two-thirds of Internet users. How has social media grown over time?
ourworldindata.org
And even then, the early incarnations of social media from that time weren't nearly as politically saturated as they are now.
Don't get me wrong - I agree 100% with the idea that the American electoral system is fundamentally broken. I just disagree with you on why - as well as with your approach to "fixing" it (preventing people you don't like from voting).
Has nothing to do with whether or not I like people. I have numerous family members that I love (not just like) who span the political spectrum, and I will be the first to suggest that they're extremely low-information voters and aren't adding any value to our electoral system given their stated reasons for voting for who they do.
I think there are people in both camps who have well thought out positions and reasons for who/what they vote for/against. Likewise, there are people in both camps who vote for stupid reasons, or vote simply to emulate someone they admire (be it a fam member, friend, or celeb)
The latter waters down the process.
In addition, it opens the door for "low brow" politics by way of finding the dumbest person from the other team a pundit can find, and using that to broad-brush "the other side", which becomes a race to the bottom.