Just because you are gay it does not automatically mean that you believe in government control of the economy and large public spending.
Today we live in an identity-politics world where the conservative and centrist is evil and the progressive left is benevolent and virtuous.
And so it is in Northern Ireland, the unionist is bad, the nationalist is good. As Newton Emerson said: "The special problem with Sinn Fein is its ideological imperative to paint unionists as a community defined by prejudice." Unionists are the "despised tribe" and the "despised hangers-on".