Because this is in America.
Non citizens have equal right to feed their families, and anyone who has agreed to the social contract has equal rights to the social services the government has agreed to provide, regardless of citizenship.
But my home isn’t in any way like a country, so this question isn’t meaningful.
You need a bureaucracy once you have a shared resource, and at that point no one is entitled to the resource more than anyone else.
The land your home is built on is part of a shared resource: the space available for the community.
If we apply your logic there s nothing wrong with immigrants showing up and colonizing natives - be it in America, Australia, etc - shared resource bro!