These sources don't break down the type of visa used, but they do address education level and occupation. There is a rough economic consensus that immigrants, including undocumented immigrants, contribute more to the economy than they consume. They also tend to start businesses at a much higher rate than native citizens.
Which of those addresses the question I specifically asked, about their use of government assistance when raising their chidlren? It looks like you kinda-sorta skimmed over my question, it reminded you of some other question you heard someone answer once, so you assumed it was the same as that other question and so you must have the answer to it.