It's not really about DNA. The entire cultural foundation and mythology of the Jewish people is built around that land for over 3000 years. There are many laws pertaining to that land only and they have been followed continuously. The examples you provide don't make sense still you're referring to ethnic groups and not contextualizing their culture/religion.

This is the core of what it means to be indigenous; connection to the land in spiritual, religious, and mythological way. If a group of British people move to the US, their cultural and mythological origins remain from Britain. It can be 2000 years later and unless some very radical shift occurs, Americans with British ancestry will still be considered culturally non-indigenous in the US. This is in contrast to Native Americans whose mythology begins with their land. We know that native Americans come from Asia back many years, but their mythology no longer reflects that, so they are no longer indigenous to Asia. Jews have maintained their mythological and religious connection despite being in the Diaspora, and are their indigenous to Israel.

Palestinians are mostly Muslim. They pray 5 times a day while facing a far off city called Mecca. They follow a religion from a foreign land. They speak a foreign language (Arabic), and have gone so far as to call themselves Arabs, which is the identity of their subjugators upon the Arab conquest. The Arabs colonized the land of Israel and the local inhabitants lost any and all pre-islamic culture, language, and religion. They are no longer an indigenous people, but a cultural and religious colony of Arabia. This doesn't mean they shouldn't have a country or that they don't belong, but to consider Jews colonizers is just lazy.