If the Blue states want to go that way, they'll be building a wall to Demwit presidencies as insurmountable as the border wall we will be building with Mexico.
The only reason the smaller nation/colonies chose to become separate states within the United States was because they made a deal balancing the power of the more populous states.
They didn’t want the big states to vote, for example, that Rhode Island would be best utilized as a national park.
So, why would Ohio, Indiana, and Kentucky want to be run by CA, NY, and IL? I’d rather be a separate nation.