Wrong. Even if the dems take over, they will just drive things into the ground to the point where the Republicans will be resurgent again.
Wrong. If the Dems take over due to the GOP giving aide and comfort to the Mueller Coup it is the end of the Party of Lincoln. They will no longer be a national party after that betrayal.
lodi90 is correct. Look at California as an example. Orange County was once a solid conservative stronghold, but no longer.