Who is honestly more "intolerant"
Conservatives are intolerant. They resist change.
You can never be completely tolerant. You have to compromise somewhere, because there are far to many conflicting views to be fully tolerant. I would venture to say of the 2 choices, Republicans are more tolerant. They allow for more personal choice and appreciate privacy. Democrats feel compelled to bring different views to the forefront to make it something to be tolerant of, and when you disagree you are automatically intolerant of someone. Also, by highlighting the differences, they intentionally create conflict, where conflict may have never existed before.
Sorry, I should have used conservative and liberal references, rather than typical party affiliation.