You are telling me that the US has made plans for invading or defending against every scenario imaginable[1], but they wouldn't bother considering the 'our drones are being hijacked and used against us' scenario? Just because you are overly confident doesn't make caution an extreme position.
I wasn't telling you that. There is a huge difference in preparing on a meta level for national and international level events, and actually investing in countering specific tactical scenarios. The tactical scenario we are talking about is mid-flight hijack and use of sub $1k drones, by a state, and by civilian script kiddies. It's not a "what if china sits it's navy on a contested Philippine island".
[1] https://williamaarkin.files.wordpress.com/2012/02/arkins-con...