They’ve managed to actually implement Trump’s immigration policy, which when Trump attempted to do

When it worked for "we actually built the wall that Trump promised", why wouldn't that repeat with "we actually did the mass deportations that Trump called for"? Lesser evilism doesn't work either way, things get worse from legislature to legislature under either party. Republicans are more adapt at pushing boundaries, Democrats are more adapt at technocratic efficiency. These things are not at odds with each other, they tie into each other and are both part of the same machinery.