Woah, now you are quoting hate groups (CIS has been cited many times as a hate group). Can you find a report directly from a scientific body, not a hate group? Thanks.
It's one thing to say you support an organized and fair process, which we all do, but you mix that up with unsubstantiated vilification of people based on their immigration status. These are two different issues, and your claims (by a hate group, not a nonpartisan think tank or governmental boddy) of the high crime rates perpetuated by immigrants indicates that you seem to think certain people are more violent or undesirable based on their immigration status, which is unsubstantiated and untrue. So, you think the DACA kids are more violent than native-born Americans? That people applying for asylum who enter illegally are more likely to commit crimes? None of this is true. This is stereotyping people, or worse.
As to how illegal immgration benefits Americans, since we don't have a process at all for many people to come and work here, workers and employers are dealing with a dysfunctional system. IF there were a process for people to come legally, which in many cases there's not, we'd still have to provide health care to people. Are you suggesting we let people die in the streets?
I'd love to see all the Americans on disability and welfare toiling in the fields and doing home health, but they won't. Salaries in agriculture have reached $20 an hour, but Americans still won't do it, even with paid vacation and 401ks. Since they won't, we need workers, and we have a dysfunctional system, people work illegally. They pay taxes. They pay into social security, but don't receive anything back. If we require these workers, which we do, since Americans won't do this work, then someone has to pay to educate their kids and for healthcare.
I'd buy that you wanted a fair process if you didn't vilify undocumented workers so much. But citing hate groups smacks of...hate.