While there are certainly specific districts and schools where this is a problem, this effect would not be remotely significant compared to the overall US population. There just aren’t that many new immigrants, regardless of whatever sources you’re reading say.
I always enjoy hearing the dichotomy from various sects of society that simultaneously the immigrants are such drop in the bucket they can be educated for a dozen years at costs that would not be "remotely significant" in measurable change of learning in others, yet simultaneously we're lead to believe deporting them is a monumentally expensive effort that would break our backs.
