"America First" is just the principle that the US government should prioritize US interests over the interests of other nations and people. It's about nationality, not race.

Anti-gun-control and pro-Christianity are just popular subjects for conservatives. Again, not about race. In fact, those are principles that you just claimed they don't talk about.

How are those "dog whistles for those types of people"?

Isn't that like saying "defund the police" and "black lives matter" are dog whistles for communists?