> Last time I crossed the border I was even warned that my passport doesn't show proof that I left the US, it only shows every time I entered it so technically, they don't know if I am staying there more than 90 days.

This boggles the mind. "Hey, I'd love to have an exit date stamped on my passport. But I don't make the rules." First time I went to the US I got apprehensive because I didn't see an "exit" stamp. My passport was full of such stamps, mostly from Portugal and so I expected one. Only after arriving back at my country and turning the data package in my cellphone on is that I discovered that the US issues no such stamps.

> the US is still seen as dreamland, in particular to those many who don't connect the dots between the root cause of the problems in their homeland and the 30% tax that will be taken away from their income once they start working in the US.

Only 30%? That's nothing. Were in the world would you pay less?

> The thing is: I hate the idea of working in the US so much that I can't even talk honestly about what I feel fearing I would be arrested.

You give crap to law enforcements, specially immigration officers, and you are in for a bad time, anywhere. I bet your attitude has something to do with it too. Try to be polite.

My experience with US immigration is that they are cuddly teddy bears compared to Japan.