This is a good thing! If all any immigrant, legal or illegal, has to offer our society is their DNA, send ‘em back. We have plenty of ignorant, disease-ridden, low IQ leeches already and they are (unfortunately) citizens. We do not need to add to that burden.
A bit of history. The public charge provision has always been part of our immigration laws since this country's founding. The exclusion of aliens 'likely' to become a public charge was a no brainer to the founders.
It resulted in countless thousands of potential immigrants being turned back at places like Els Island and other ports of entry and sent packing.
Then about the time of Jimmy Carter they largely stopped enforcing the provisions. No hearing were held, no law was passed they just administratively decided that enforcing the law was not to their benefit.
Then came Trump, and that's the rest of the story.