Yes open your borders to us and let me in already, darn it!
I think at very least, if someone is willing and able to sustain themselves and provide one or two jobs for other Americans, they should be allowed in. The EB-5 visa (which requires a $1 million business investment plus the hiring of at least 10 staff) is simply unreasonable and impractical. I base the number of staff that I hire on the profitability of my business. If I have to hire 10 people now until I get a citizenship (even if the business can't sustain that many employees), by the time I get it I'll be broke and living off US welfare like my 10 newly unemployed staff members. Why not let me just hire 2 or 3 people, at least until we start to turn a profit, then take things from there? That way the jobs will be sustainable long after I get my citizenship, and I'm still contributing more to the economy than the average American in either scenario.
If we could trade some of our dregs for some people who actually want to do something with their lives...I'd be more willing to increase legal immigration.
Literally opening the borders would induce way too many security concerns.