Earlier quoted context omitted.
That's all within the realm of possibility, sure. But keep in mind that the affluent could simply buy a drone(or what-have-you) with all sorts of bells, whistles, and 10 years of improvements to security. The amount of work necessary to DIY something that even begins to approach the capabilities of something built by a company that knows what they're doing would be extreme - I'd argue insurmountable in many cases - e…
Right now, the Americans spend billions to defend against men with $5 boxcutters from Wal-Mart. Defense is more expensive than offense by a large multiple. A little more capability to attack requires an immense amount of additional capability to defend against.
What you're saying is true at a high level. However, it isn't box cutters they're using and the situations are so radically different in every aspect that I'm not entirely sure why this anecdote is even relevant.