This is an honest question. I'm guessing that if/when he wins, they're going to try to secede, that is, the more liberal states, but then Trump will try and find ways to stop it, knowing that there are patriots in all 50 states and that they'll deem it unconstitutional, and to keep the nice, round number of 50.
And hopefully in the best case scenario, this will resolve the secession desires that we on the right understandably have because then Trump will be like, "no guys, we are tough and proud Americans, we don't go away from them, they'll go away from us!"
By the way, this is Q related, or something to consider as part of that scope.
They're not going to secede, unless they could immediately join an existing globalist nation, which would be impossible without a straight up war. They might rile their followers to demand it, but the whole idea of big government is to grow it, not shrink it. Bankrupting the country is an important step to forcing globalization, as is the destruction of culture, family, religion, privacy, and personal property
Seceding would set back a lot of work already completed in "red states," at a minimum.