Imagine being so closeted you think only Liberals are trans people!

This is exactly where Republicans were, in terms of groupthink, fifty years ago.
When being gay was the same as being a commie.

Nowadays, everyone knows there's tons of gay Republicans. Even Republicans know it. There's even a group called Log Cabin Republicans to try to make it okay to be gay and be a Republican, which of course it isn't really, but they try.

Log Cabin Republicans was founded in 1977, right around the time society, including many Republicans, decided being gay was not worthy of being sent to a mental institution or worse.

Republicans who acknowledge the existence of (largely closeted) gay Republicans today, most of them can't accept there are Trans Republicans too.