Is it worse or does it dilute the bad if there are a ton of baby mammas not just a "girlfriend who is also the mother of a couple of children"? I don't like the guy but it kind of feels like it somehow isn't as bad when it's just open, repeat behavior and nobody thinks he is even trying to be exclusively "with" these women. I have no idea what their shared understanding is but it might not be as bad as your framing makes it sound if that is openly known between them.

Not a lifestyle I could ever be proud of living personally but ymmv and elon seems to be enjoying himself.