I think if the other states allow it, it can happen, but it won't happen. For several reasons. Look up Quebec and the issues there. Mainly the money. The bill itself just asks for a referendum to see whether the Legislature should look into it. Pretty stupid because any investigation into would say secession would be "fucking stupid". Of course, "fucking stupid" is the second plank of the GOP platform these days.
But in the theoretical, the idea of the GOP reducing their influence in American government, however, sounds... nice.