organizations like this for example
https://en.wikipedia.org/wiki/HIAS
there's a lot of reasons jews woukd want less whites, which jews themselves will openly admit to.
For one thing, they are just afraid of us. Hitler for example. Or titus. Etc.
jews also are simply adapted naturally to a more diverse society, because they lost their homeland 2k years ago. They are both used to not being a majority in any country, and they are used to being international themselves and traveling everywhere.
And they hope that a diverse society will make them less visible. Surely the whites will attack the blacks or the Filipinos before they go after jews, so they get to have a canary in the coal mine.