Legal immigrants are entitled to social security, etc. if they meet all other qualifications just like a citizen would.

Illegal immigrants used to be able to draw if they lived outside the US but the rules just changed so that may not be true anymore.

You are conflating legal and illegal immigrants. The visa restrictions are on legal immigrants. And while, as a legal immigrant myself, I would like to think that the vast majority of legal immigrants work hard and contribute positively to the country, it is a fact that certain groups in certain regions have an extremely high usage of social welfare programs (SNAP, Medicaid, etc), sometimes exceeding 80%. This is cause for some concern, IMO as it suggests problems of one sort or another. All that said, I have doubts that the administration's new visa restrictions will have a meaningful impact. Of course, I've been wrong before :shrug:.