Pretty Americentric line of thought considering us dirty gaters have international "membership", but this also applies to the West in general.
Call it China or the Globalists -- 'and' is probably more appropriate, but there's been a deliberate decades long attack on our educational institutions, our government, our economy, the Christian religion, our borders, Communist infiltration of key positions in government and industry, etc. etc. etc.
And it's been so effective, I just don't see a reversal of course. Even if the moderate collective pulled the wool from their eyes and took action, we're still due for an economic implosion as the debt bubble eventually pops, and we'd have to deal with the indoctrinated masses who would violently resist being jacked out of the Matrix.
Personally, by this point I'm not even thinking about saving the republic, but rather what actions will need to be taken to build something better from its ruins.
An interesting way of looking at it- I would say what you described is more like meritocracy than classism. But then when you look at the groups that most consistently reach the top in a meritocratic system, it tends to somewhat validate the racism/sexism viewpoint. But then there's the argument that it would be wrong to disenfranchise a legitimately gifted individual from a group that was on average poor performing. I guess that's a really long winded way of saying that I mostly agree.