One more point on the opening poster’s wrongness: Midterm elections were not intended to neutralize presidential elections, though they can have that effect. But more importantly, in the last midterm election, and some others, Democrats out-polled Republicans, but gerrymandering gave Republicans more Congressional seats. So people are still supporting Democratic party ideas, but they are thwarted by the legal trickery of gerrymandering.
After the 2010 census results were in, the Republican party in many states did a very effective job of gerrymandering. The Democrats and others have recognized this, and they can be expected to be on their guard after the 2020 census.