Jeb has badly lost focus on what used to make America great.
It was more difficult to get into America in the past, but it was also more easy to succeed once you did.
In a way Jeb is quite correct. If you make yourself a welfare magnet, people will hustle their beloveds into your country. What that does to the country is little care to them for the time being. Oh the party will eventually collapse but what we worry?
I believe what made America great and prosperous was the rule of law, combined with a constitution that enumerated inalienable rights. It made for a rational society and enabled citizens to live rational lives.
I suspect Jeb Bush is not a deep enough thinker to have ever understood that. Politicians can deny their policies make us less prosperous or free, but reality will not be denied.
Con men ask you to feel at the expense of thinking. Jeb Bush asks no less.