I encounter similar sentiments constantly across the internet. One thing we as humans have a lot of trouble with is understanding the scope of experience that isn't commented on in public forums. When we consider comments on the internet to be a representative sample of reality, we get a very warped view of what might happen to us when we step out the door. This paranoia and anxiety is evident in the proliferation of surveillance technologies, etc., and is completely contrary to the obvious decline in crime rates pretty much everywhere.