They think 'My Body', not 'Yours', not 'Hers", not, 'Theirs'. It's another aspect of 'Privilege'. They see themselves as the Privileged Class, the Overseers, the Lords of the Land. It is about control, it's also about selfishness, about refusing the existence of others, and refusing to co-exist with others.
It's a sign of some serious mental Health Issues.