Paul Ryan and many of the other Rinos are Libertarian-Republicans. A lot of Libertarians made a conscious decision to run as Republicans since they could not win as Republicans. They boarded the GOP like pirates and ran the party’s reputation into the ground. Trump represents a return to the old GOP which is making the Uniparty very unhappy. The reason there is a Uniparty is down to people like Paul Ryan.
I meant to say, they ran as Republicans because they could not win as Libertarians since the party apparatus isn’t there because they run their party according to their principles.