If we're talking strictly social policy, then yes, all GOP primary candidates are far to the right of the Democrats and the center-right parties of most (if not all) Western, developed nations.  The views described above are certainly regressive, but within the mainstream of the current Republican party.  I also find their deferral to States' rights to be cop-out.  

Coincidentally, Chris Christie, who has since gone off the deep end in his support for Trump, is probably the most moderate mainstream Republican out there when it comes to social policy...so much so that most observers considered his candidacy dead in the water a few years ago because of it.