Everythingg
King-Over-Kingz
You are interpreting.
In the Torah there are plenty of people who were non israelites who converted . They were not born into the tribe or descendants of Jacob.
How is someone who is all ready an Israelite or descendant of Jacob convert ? Gentile means outsider, non jewish , pagans
Where does the Torah specifically mention CONVERTS? Emphasis on CONVERTS...
And once you (do not) find that, why would real Israelites accept "converts" who do not even recognize the status of the true Israelites as being ISRAELITES?