Firstly, He wasn't my candidate, I always supported Bernie.
Second, yes the party got him to step down, but after that happened, why do you think no one added their names to the list for consideration at the convention, and before that why did no big name Dems compete in the primary against Biden?
The answer is very simple, no Democrat wants it right now, every single big name like Gretchen Whitmer, Gavin Newsom, or AOC would rather wait until 2028 or after to run, and that's why literally every single one immediately threw their support behind Harris.