The idea that 'once a conservative wins, the universe is that much closer to exploding' is an oft invoked media narrative. Time and again whenever the press reports on a conservative proposal, it's framed as either an immediate threat to various groups, or a stepping stone toward Jim Crow, swastikas and pogroms.
In any event, the GOP is all there is for those who don't want to support a party beholden to the secular paganism of the global Left. Those who don't want to crawl into a cell and let the world burn that is. Because the Left is a movement increasingly clear in its designs to destroy liberty, freedom, equality and the sanctity of life.
Nonetheless, never forget how flawed this alliance is for those who seek the right means to the right ends. At best it is the least of the evils. At worst it's a terrible and ultimately fruitless waste of time.