It's even more insufferable when the "perfect" they refer to is like, the barest minimum acceptable policy positions and the "good" is just actively being an evil bastard and willfully doing significant harm both actively and through negligence, but maybe it's a degree or two less malevolent than what their good friends and brunch-mates in the GOP want to do.

It's like the left is begging them to stop supporting ethnic cleansing and imperial atrocities and they're just like "nope, sorry sweaty, the best we can do is continuing to do all of those things but with dIvErSe MeRiToCrAtIc systems that do them more efficiently, and a PR department that says the right things instead of those same things but slightly meaner!"