All of these points are valid to an extent, however they all exist on every other service that fills the same role. FRS: unencrypted, type accepted radios only

All of these points are valid to an extent, however they all exist on every other service that fills the same role. FRS: unencrypted, type accepted radios only. Extremely low radiated power and sensitivity. GMRS: Gotta pay $70 to the gubment every 10 years, type accepted only, unencrypted. MURS: Unencrypted (mode restricted), and very few usable channels, type accepted. CB: Unencrypted, unwieldy equipment, full of lunatics, type accepted. At the end of the day, you live in a society that requests you follow some laws and get licenses for things that can effect others. The encryption issue is contentious and not entirely one-sided but realistically you're far more likely to be bothered over the public bands and the security risk you fear is rather non-existent. I don't exactly know of a hams being kidnapped or attacked in the streets. The US is far safer now that it ever has been on a crime level so having some trust in your fellow man is not unwarranted. If you really want to be left alone, use Fusion or Dstar over simplex :)