This was true a decade ago. It is no longer true.

The modern Trump controlled Republican party is not a party that cares about personal liberties. It is a fascist, authoritarian project that is toying with straight up Nazism. They are explicitly pulling from the Nazi playbook in their language and strategy of attack on the rule of law. Someone who supports that party is supporting a completely different set of values from someone who opposes it.

That said, that party is also backed by a powerful and effective propaganda machine that has successfully pulled the wool over many people's eyes such that they don't fully realize what it is they are supporting.