It's not about immigrants. It's about process. When I immigrated to USA in 99 I had to go through a whole bunch of bureaucracy, background checks, vaccination, medical exam...

There is a big difference.

And the issue is not even all the immigrants, they were told hey doors open all good we give you credit card and housing. Of course you go if you live in a shitty situation in your country.

And this was taken advantage of by all cartels, and gangs, and political prisoners...