It shouldn't even require force.

All it took to convince me that things like marriage, monogamy and large families were a good idea was encountering some very basic arguments that anyone could understand and only the most committed degenerate could argue against.

The only reason I had not encountered them is because my parents took almost no direct role in my education and all my teachers were marxists who were taught to hate families.

*ALL* we have to do is homeschool one generation of children and this problem resolves itself.