Why do people do this though? Maybe it's inevitable, but I think there was a lot of pent up frustration with the government that led a lot of people to just say "fuck it". Not really excusing it (especially for his second term), but I feel like we're reaping years and years of a dysfunctional and ineffectual congress. Not that that's an especially easy problem to solve either.
I think this also explains a lot of the frustration with SCOTUS. In-theory, SCOTUS is supposed to just interpret and flesh out the policies decided on by congress. In practice, congress doesn't really do anything, and people started depending on SCOTUS's ability and willingness to make far-reaching and impactful decisions. Now a more conservative SCOTUS isn't doing that.