In April, the NYT did a poll (or archive) asking people what they remember most from the Trump presidency.

Voters who shared negative memories of the Trump years overwhelmingly mentioned aspects of his behavior and personality, while the bulk of positive memories were about the economy.

So the Democratic voters couldn't even articulate the material things that were bad about those years. Only 9% picked "immigration," and the quotes from people who gave that answer were 6-1 in favor of his immigration policies.