I would argue they have as much right to defend themselves as the guy who breaks into your house, murders members of your family, boots others out, and forces you to live in a toilet, dependent on them to provide you with food, water and medication, and on top of that they get angry about any criticism; in this scenario as well, if you defend yourself, they call the cops and the cops beat you up. They have some half-assed reason for why they supposedly own your house (something about their war of independence great great great grandad having owned the land), but you also know they'd been talking about invading the people living down the street and doing the same to them. You go on the internet and you find out some losers from half a world away are also seriously saying the home invader does indeed have a right to the house and to defend themselves and to add grievous injury to injury they're also funding him getting new guns too while they call you a savage for not even trying to get along with your home invader, who by the way punches you in the face and shoots whichever of your kids you still have in the knees if you so much as look at them funny. They invite members of their own family over to live in your house, but your own family members can't come back, and if you leave you won't be allowed to come back either, and that's if they let you leave.

If any of this sounds ridiculous it's because anti-home invaderism is racism, never mind that the original home invader has literally stated that no no, we're actually doing a home invaderism and has expressed a hatred for his own race when they oppose the home invaderism.