Your characterization of Biden being a "uniter" though, is exaggerated. Biden came down very forcefully on the liberal side of the fence, on every hot-button issue that divided (and divides) Democrats from Republicans. As a centrist myself, I personally despair of either party truly deciding to work with the other.
Man, everyone would take "centrists" a lot more seriously if they'd actually NAME the polarizing hot-button issues of the day when you do the hand wavy both sides schtick, and stop acting like "centrist" is an excuse to not have a rational opinion on anything yourself.
Just come out and say it, windmills, vaccines, egg prices, bathroom governance, confirm everyone's suspicions. You have to say it though, your own words, what did Biden do, the great divider of hot buttons.
Both sides think centrists are fucking idiots. They're two adults yelling past each other, one wants what's best for the family, the other is balancing limited means with reality. A centrist is the kid eating nuggets wondering which parent he's going home with and if that means he can stay up late. We both care deeply about you, now cover your ears and go back to your cartoons.