I have a male partner for 13 years, and he is born and bred Southern Californian from growing up in the 60's.
He is what I would call a "passive liberal" like your wife. He is s conservative on economic issues, but is very liberal on abortion and hates gun rights.
I do my best to convince him on the arguements, but to him it is all superficial, it is all about how one looks and what not one says.
I've had some success, he voted for Trump in 16 and Cruz in 18.
He really loathed Beto.
He does not like voting, for if he votes he will get jury duty. I vote for very important votes and issues.
I know I put myself on a limb, we both just want to live in peace, and both agree that the term "marriage" is between a man and a woman.
What, if i can ask, are you doing with him, unless you are a type of liberal also, living together outside marriage (but do NOT marry him), perhaps under the premise of "missionary dating?"
Registering independent or “no party” usually stops that. They assume you are an anti-government crank and won’t call you in. ‘Republican” is equal to “Sheep” and earns many a summons in your mailbox. :)