Lack of decorum is basically why libs hate Trump. He doesn't sugar coat what the empire does, and doesn't try to spin it as anything moral. He just comes out and says that US occupies Syria to steal oil for example.
This is his cardinal sin in their eyes, he pulls the curtain back, and it makes them really uncomfortable because he doesn't leave any ambiguity that can be rationalized away to keep pretending that US isn't an evil empire.
A dead famous populist leader in Canada called Rob Ford also had the honesty about the real culture of laziness, profanity, and alcoholism of European immigrants who became spoiled from the free stolen land, free child labor in Indian Residential fake schools, free stolen inheritance from abducted children, free misappropriated funding from state-swindled Indigenous parents, and high quality healthcare from free unethical experimention on children in fake school death camps. The free stuff that the ungrateful European immigrants received from First Nation people in Canadian Residential fake school death camps might even continued today although they need to supplement the Indigenous babysitters with exploitable immigrants of color to sustain the parasitic lifestyle of European immigrants.
America's presidential elections are a circus show, how can anyone take it seriously. Liberals will froth at their mouths when they see Trumps supporters, even though they're both fundamentally the same.
I'd hesitate to even call Biden polite. I haven't forgotten some of the clips of how rude he was during 2020 to certain people questioning him on campaign stuff. He seems really on the borderline of straight up qualifying as a "Republican" that liberals would love to hate on. The way he acts now and the way he has acted historically in policy, if he was a member of the Republican party, I don't think liberals would have trouble viewing him as one at all.
It seems to me that there is a concerted effort since sometime after his campaign started in 2020 to portray Biden as a polite reformer that he has never been in his political career. To be clear, I don't mean this in an arrogant way like I know it all or that I would have predicted he'd be this blatant about supporting genocide, but if we go back in time, I don't think the substance of him even in terms of decorum is remarkably different than what the Republicans are putting up. It's possible that by comparison, he qualifies as polite because of the Republicans leaning more into rudeness than in the past with Trump's full on crudeness, but in terms of overall liberal standards of decorum, it feels very much like being gaslighted into thinking he is that (not on your part, but on the part of the liberal faction of imperialist media).
With this said, I almost want to say it is more like between rude and crude Hitler.