Did the gay people on one of the islands in any way threaten the marriages of the straight people on their own island? No they didn't, the gay people only affected themselves as gay people in San Francisco not anywhere your neighborhood don't affect you.
You're strawmanning me, I am not in any way making a case for Marxism as I don't adhere to such extreme ideologies. I am for people being lifted out of poverty with the wealth generated by capitalism being distributed to other people and not just a top ruling class. Such countries that have such a system arw basically any developed country that's not the USA including Denmark, Finland and Switzerland abd they obviously are not Marx dictatorships, they are more free market than the USA, in fact Finland left the totalitarian USSR to become its own free nation.