That's because the cycle, including in the media, has devolved into "that's just Donald being Donald" on one side and Biden having to play by the rules as an old-order guy on the other. Trump supporters are similarly liberated to talk and act as they like while liberals are held to a measuring stick of "if you say you're against it, you need to act like it." The double standard is obvious, but not enough people care about it to hit a reset button on it, or at least insist on setting the bar equally high in both directions.