I'm all for it. But there might be unintended consequences. For example, I wouldn't be surprised if an enterprising banker started a program to lend you $100K

I'm all for it. But there might be unintended consequences. For example, I wouldn't be surprised if an enterprising banker started a program to lend you $100K on condition that you pay them x% of your salary for y years. Companies like Microsoft might find that an attractive alternative to the current H1B circus. For a large segment of foreign enterprising individuals this is not a good enough deal though. Looking at myself: When I finished school in the US a decade ago I just spent $100K buying education and I didn't have another $100K available. Now, living in the EU, I have a successful startup and could afford it but I also have a wife and kids and I am no longer able nor willing to move.