I don’t understand what you are saying very well.
Are you saying that
a. because Jews living in modern Israel were persecuted where ever they lived in the diaspora over 2000 years before, they must not be allowed to be killed by threatening Arab countries now - which is what would happen if the U.S. refused to arm them?
but,
b. If the Jews use those arms to kill Palestinians and destroy Gaza and possibly the West Bank too if possible, that is ok because the Palestinians are not a separate race who were previously persecuted? ( Except by Israel.)
I may have misunderstood, but that does not seem to make sense to me. I agree with a. but not at all with b. .