The Christian Right has been a catastrophic failure, and is largely responsible for America’s leftward movement since 1988.
Any candidate for national office associating with them has a death wish.
I agree with the first half of your statement, regarding the failure of the Christian Right. However, the United States is following the same leftward path of all the Western democracies. Most of them do not have large evangelical communities. By and large they are nominally Catholic or mainline Protestant. Ineffective resistance or no resistance are little different.