I am sad to say that it is likely not over; the people who voted for Trump didn't wink out of existence. The Democrats barely won the presidency and lost ground in Congress. It's really a tremendous slap in the face for them by the public, given how unfit his opponent and those who aligned with him were.
Things could easily flip the other way in 2024, particularly if the economy goes south as it's been projected to do in 2021.