I don't want to be a dick, but there's a lot of sloppy logic and factually incorrect information in your comment.

The people who founded Israel were European Jews with no connection whatsoever to the Middle East. The fact that some Jews lived there thousands of years ago doesn't make it eternally Jewish land.

First, of course Israel was 'founded' by European Jews--where do you think all the exiled Jews ended up? For it to be founded by Israeli Jews diaspora would've had to not happen. You're using their own persecution against them as reason to deny them the claim to their homeland.

If that argument were extended to groups other than Jews, every single country on earth would be at war trying to reclaim a supposed 'ancient homeland.'

That's called a slippery slope fallacy. It's also unnecessary because the Jews did have a war to reclaim their not supposed but very real ancient homeland. They won.

Most historians agree that the Palestinians are the descendants of indigenous Jews

Name some of these historians, please. And any remaining descendants of the indigenous Jews after Roman exile would've been absorbed into the population starting in the 7th century when the Arab-speaking Muslim armies of Umar Ibn el-Khatab conquered and held the area. Again in the 12th century there was an influx of Muslims due to Saladin's conquests; this time they're the Kurdish Ayyubids.

a sizable portion of the Palestinian population are Christians

This is either a straight up lie or you're using the most generous interpretation of 'sizable portion' in the history of the English language. Christians make up 0.8% of the population of Palestine. Between the populations of Palestine and Israel combined they make up only 1.3% of the population.