> a better word for the viewpoint that everyone should have kids
I have a good one: "opinion".
I have another great one for when someone won't leave you alone and insists that you hold their opinion or there's something wrong with you: "fanatic". See also: "jerk", "creep", "weirdo", "person I avoid".
I really don't get these quasi-political categorizations. If someone's being a jerk about their opinion, they're a jerk. Words like "pronatalist" just strike me as unbelievably effete. Like "pronatalists" are this powerful lobby group from whom we all need protection.
If someone won't shut up about their opinion and keep trying to push it on you, they're just a jerk, and probably kind of stupid too.