As a society we've been pretty cavalier about algorithmic control. Which can work well for a lot of things. But probably shouldn't be trusted (without a TON of validation and regulation, as we've done over decades with airliners) with controlling stuff that can injure people or damage societies.
There's lots of easier ways to hack our fragile ATC system than herding birds at airplanes that I'd worry about first.
Humans may be in some ways easier to influence, but once an algorithm gets big enough, it can be worth attacking if the impact would be huge.
Or did you mean conspiracy theory? Huge difference.
All of these things are way harder than simply buying a drone yourself and doing illegal things with it.
There simply isn't money in downing planes, so most people have no incentive to want to do it.
How about we just call them "remote-controlled aircraft"... which is what they were called before the whole "drone" fad came along (and "drone" itself used to imply at least some autonomous capability.)