Here are my 2 main concerns:
1) Those liberals, not resident in the new state, will flea to the new state and the problem will simply be recreated in the new state.
2) As the skilled, moneyed and motivated liberals flea the two, old, liberal enclaves , those counties will be consumed by Mexicans. As the Mexican demographic soars in these counties, the US face the prospect of at least one and possibly two enclaves in it's midst, whose principal residents are foreign nationals with no education, skills, capital or a desire to maintain a political connection with the US. Those foreign nationals will control two major US ports.
The constitutional convention for the new state would address the problems that allowed liberals in the present state to act as a legislative tyranny to make certain the mistakes of the past cannot be repeated in the new state.
I expect the liberals will come to the new state once they see the stark differences between the two states, but I expect many will come with a new found set of conservative principles motivating their move.