Are you proposing a different solution? Or are you content to be a cynic that does nothing?

Democrats have a disadvantage in this years Senate race yes. But polls have become so anti Trump these days that today, Senate races are looking 50/50 odds. Which is a huge benefit to Democrats when this years Senate race should be a Republican blowout (a lot of Texas, Georgia, Alaska kinda states up for Senate this year so Republicans should be winning. The fact that it's 50/50 in these states is down right crazy and shows how crap the Republican support is right now).

The House is a hilarious mix of terrible Gerrymandering (ex: Florida assuming that Latinos will vote Republican) or defeated Gerrymandering (Texas gerrymandering effect being defeated in court).

All in all, it's a hilarious self own where Republicans couldn't even be trusted to Gerrymander correctly and may have made the House a worse situation for themselves. So if anything, the Gerrymandering is seemingly leading to Democrat advantage because of how incompetent Republicans have been.

So as I said before: we are looking at House blowout for Democrats and even a surprise 50/50 odds for Senate. That is a huge change of that happens.

Your invocation of corruption/Gerrymandering doesn't mean anything if you actually look at what has happened. It only matters if Republicans Gerrymandered correctly.