“Actually white people originate from Africa, so we have a right to take back the ancestral homeland of the white race”.

“There are plenty of ‘black countries’ for them to choose, this should be a white country for us.”

“If those people keep reproducing, soon white people won’t be a majority, and that’s ‘white genocide’.”

Arguments like this are only plausible to terminally racist settlers. You go along with them because it licenses you to keep pursuing your material interest in murdering people that don’t look like you and stealing their land. After all, if the people living in Palestine have a right to live in their homes without being invaded and exterminated, then that raises some uncomfortable questions about the US, Canada, Australia, and other countries built on land theft and extermination by white Europeans. You obviously can’t think too hard about that and still believe that you’re the protagonist of history, so you’ll seek out any flimsy justification to keep believing that bombing hospitals makes you heroic.