Yeah, I never considered Trump to be a conservative. The GOP seems to be moving away from conservatism, I guess.
Trump is basically a populist democrat from 10-15 years ago, and that's more or less what put him over the edge, is winning populist democrats who were turned off by identify politics, environmentalism as religion, and coastal elitism of the modern democrat party.
Conservative doesn't really meaningfully describe any significant faction in the current political landscape.
Liberal still reasonably describes something to people, even if it is more or less the exact opposite of the dictionary definition of the word liberal. Many "conservatives" are in fact radicals that want to go back to a federal government limited to enumerated powers, but not enough of them for that to be a useful word the way liberal is to describe statists. There's still a small group of people who are "standing athwart history and yelling stop", but they are a very small group also. Just not a lot of people that think the current level of government scope and powers are appropriate without wanting to expand them. There is probably a small group of people in the republican party who do want to roll back government, but incrementally. But mostly I think people have given up on principled approaches to government. They are just less obvious versions of trump, picking positions out of the air with no rhyme or reason other than a few issues they particularly are impacted by personally or are just passionate about a particular issue.
As I said above, are Republicans actually capitalists or not? Protectionism by definition is anti-free market capitalism. I don't care either way. Just pick one and then stick to it.
There are many Republicans, some are capitalists, some are not. Most I know are capitalists, but I cannot say for the majority.
I would say most are free market capitalist except protectionist when it comes to their business/profession/employment (maybe by being pro licensing, pro-regulation that limits competition, or straight up protectionist trade policy). Similarly to most people on the left being pro-regulation generally, but the regulation in the industry that they have expertise in just happens to be particularly bad.