Of course there are lots and lots of right wing Christians. The credentials to calling yourself Christian is exactly that: "call yourself Christian". There aren't any authority on who can call themselves Christian. There are authorities on whether you can join specific nominations, but there are countless of them, and in the end you can just make your own if that is your thing.
So arguing that they aren't Christians is using the "no true Scotsman" fallacy. If you call yourself Christian you are in the same group as these people, and it is a personal issue whether that is a problem for you or not.