If you find a way around this, please post the link. I have the problem from the team side. I don't want to do any damage to anyone, but I don't want to share anymore either.
In the meantime you should make sure that people you're sharing Teams with create a fresh free Dropbox account for that purpose, not their personal one. If they really need some folders on their personal account too I guess they could share a folder or two with their personal account?