EU has sustainable practices, robust regulations, and way less idiots in power. There is a lot of idiots, but the way regulation works, it’s harder for them to fuckup. Not impossible, but harder.
Good chances that chicken plague is already here, but is dealt with appropriately and doesn’t have this devastating results.
Also, no measles.

If voting patterns of America ever showed something consistently, it is the fact that shifting to the left in any sense never works. You can sometimes entice the public with enough vigor so they don’t focus on your politics, but outside of very rare cases, shifting to the right consistently brings some votes, and shifting to the left consistently brings loses.
And no amount of social media posts was able to change it weirdly enough.
It might have something to do with consistent anti-voting narrative of a lot of the vocal leftists, coupled with their bafflement that they consistently don’t get a desired outcome.