Putting Trump in charge doesn’t hold Democrats accountable. It would move them further to the right, which is the exact opposite of you want. They don’t care about disinterested non-voters, they only care about courting those that do show up to vote.
Change needs to come from within. Organize within the DNC. Primary their candidates. That’s how you get people like AOC elected. Once the primaries are over, there’s no shot at moving them further left.