Obviously political views get pretty extreme and I wouldn't go out with someone who I thought was crazy or nasty.

However there is a real problem in this left wing movement against dating outside the sect.

Women almost universally become more conservative once they have kids. This means by only dating the most left wing, left of Starlin, men they are setting up their relationship to fail as soon as they give birth. And we see this happening irl, the majority of parents who divorce do so in the first few years of a child's life. When the women has a tiny screaming baby on her hands she suddenly realises she's going to need a lot more support and help and can't play the part of the independent smart cool girl anymore. Meanwhile her partner signed up for that kind of relationship, where he can be a kidult without responsibility, and isn't going to change.

Far better for a woman to have a partner slightly more conservative than her if she wants kids then they will eventually be on the same level. In fact if you look at women's romantic fiction those kinds of parings are pretty much the only ones which sell.