> It's basically impossible to impeach anyone with the way politics is polarized these days
That's because no president has committed any supposed crime of any importance.
Nixon probably did, but resigned anyway, and was then pardoned, so it doesn't really matter.
Clinton was a technicality, and never removed from office, and no one cares really. Lewinsky is a celebrity now.
Trump... well the first one was obviously political (many Presidents deny foreign aid, etc... it's part of foreign policy. Biden is famously on tape as admitting to doing the exact same thing) and the second one was on thin ice as Trump explicitly called for peace