Now that is a good question how the former Communist states viewed those who did not conform to traditional views of marriage and the family - I know that single mothers were supported with childcare and there was easier access to divorce and abortion than in the west. But what about homosexuality? I think that was also seen as undermining the state because of not producing children to support the state but I may be wrong.
I think the views on homosexuals in any given communist country have more to do with how the country's culture was before communism.
Russia is extremely homophobic today, but I never heard of any difference between West and East Germany.
After all, homosexuality only affects birth rates if you have strict monogamy, no contraception and no abortions.
Where women have bodily autonomy, birth rates depend on how many children women want.
So some heterosexual women won't have children because they don't want any, and some lesbian women will have children because they want to.
You are welcome to become communists, most people would not even think about considering this as an option given the record of communist regimes.
It always depends on how bad things get.
Sure, China has its problems, but hey, at least the communists abolished foot-binding.
One can also disagree on whether communism has ever been properly implemented, what with every communist regime consisting of a handful of privileged individuals ... but that's not an argument I want to start on here.