An application of an Amendment to the Constitution is different than the entire document. Context is important, but I see you're committed to ignoring that.

> The only thing preventing Trump from being impeached is that it's his party in control; that's it.

This is objectively, factually incorrect. Nixon's case was a slam dunk, 100% win. Nothing you've presented comes even close, try harder. Yes, it is theoretically possible to push for impeachment charges with a worse case. I'm arguing that would be very stupid to do, because it wouldn't work and it would destroy potential for stronger cases in the future.