It takes considerable planning and it is very expensive to get into this country. Only smart, organized, and highly motivated people can pull that off.
However....I agree with those who are pushing for strict enforcement of existing immigration laws. And...We should give highest priority to those who are highly educated and made the effort to learn English.
I lived in L.A. for quite a while and I can attest to the fact that those crossing are not the best of the best of the best. I’m sticking with my 80 iq estimate and that is being kind