I mean, we're basically looking at a total lockout of Democrats from national politics for at least 10 years. The Senate is clearly gone, barring a massive backlash election, the House is gerrymandered to hell (and is going to stay that way until at least 2030 now), and apparently all you need for the Presidency is someone willing to be hateful enough to turn out the Trump Base.
Wouldn't redistricting come after the 2020 census? Meaning, if Dems win enough state races in 2020, they can peel back the House gerrymandering?