To the best interpretation of the above post, the poster seems to forget that those who take care of winning an election need to focus on the undecided voters in the middle.
More people voted in the 2020 presidential election than any before it, not because they were Biden supporters, but because they loathed Trump. The Democrats need to stop being apologetic, and keep reminding people what a horrible person Trump really is. That's how they will win the 2024 election.