He isn't wrong. If they hadn't pushed a senile 81 year old incumbent leader upon us as their candidate, in a blatant attempt to parachute an unpopular vice president into power once the 25th Amendment had to inevitably be invoked, then we would never have had a second Trump term.
Biden should never have ran for a second term, and allowed time for the Democrats to field a decent candidate for the White House. The fact that Harris literally lost to somebody who tried to stir up an insurrection against Congress four years ago says it all.