It has nothing to do with being a RINO, the fact is the demographics are shifting in America and unless the GOP changes their platform they not going to win a Presidential election for a long time. The alienation of hispanics will continue to be the demise of the GOP, and unless they find a way to bring them on board they are in big trouble. Texas will be majority hispanic within 20 years, and Florida may too, so if you have the Democrat candidate winning FL, TX, CA, NY there is no way for GOP to win.
What needs to happen is the electoral college needs to be eliminated, all is does is disenfranchise voters and hand control to a few swing states. Republicans in CA, NY, IL ect.. have no reason to even vote, they know there is no way they will matter. Same is true for democrats in deep red states.