As an American, I can't help but find your listed "fears" quite humorous (and irrational). The US is a huge country with 300M people, and there is pretty much something for everyone. For example, Portland, OR is extremely bike friendly (as are many other cities), and I've never seen a gun brandished by someone I didn't know. I've never locked my house in the 3 years I've owned it, and my car keys stay in the ignition with my garage door open 90% of the time.
Starting a company is a risky endeavor no matter where you do it, but I would advise starting a company in a country with which you are familiar, or with cofounders you trust that are.
That list was definitely not intended as a list that applies to all of the U.S.; quite the opposite: some of the points apply to some of the U.S. (I didn't make that clear though). You're right, there's something for everybody. One problem is that this also works the other way; I have to pick from the places where I find an interesting job and where the employer wants to employ me. So far those places have been places where several of the above criteria are unfortunately met. I do know that some of those things are definitely irrational, and would not be a problem in practice (especially gun ownership).
Starting a company is a risky endeavor no matter where you do it, but I would advise starting a company in a country with which you are familiar, or with cofounders you trust that are.