As the Dems start to reconsider their policy positions, their one unalterable belief is that they must stop Trump from doing whatever he is doing. Particularly since he is now a one-term President, this doesn't seem to be a favorable strategy for them. While it may pacify their core members and donors, it forces them to oppose policies that are favored by a majority of the voting public. Hating Trump may make them feel good, but it is not a viable political philosophy.