Ive had a handful of previous Democratic voters, whom are classify themselves a Liberal, observe the same actions.
"We support free speech, as long as you agree with the core tenants of Political Correctness, Affirmative Action, Feminism, and Liberalism."
Whereas, Republicans/Conservatives have a much greater variance of ideas. There's the RINOs, the Moderates, the Libertarians, Tea Partiers, and more. Yes, there is infighting.
But in the end, they all acknowledge each other as Republicans. They may have spirited "discussions", but they are all allied with the same goals in mind. Reagan taught them that well.