Having Yiddish speaking teachers and frum classmates in a class would be wonderful for yiddish speaking children, even just a frum, any language speaker for frum children as well. It would be a gift, but I don’t know that anyone could think of it as a right. I don’t see why a public school should be held responsible to fund or provide such a thing.
(I have only been skimming some of this thread (politics doesn’t interest me but special education does) so I don’t know that anyone said they should I am just commenting on the above post.)
I have worked in schools where the non jewish teachers have been very careful about providing kosher food and some even made brachos with the kids.