You gave your opinion, I gave my opinion that what you suggest is way worse than the alternatives. Don’t understand why are you upset.

If we leave out Bitwarden, yes. Doesn’t make proprietary password managers any better.

Is it open source? If not you can’t know what they use there, just what they tell you to sell their stuff.

There are a lot of different drones being used. For example you can’t use fiber-optic for drones that target something 100km afar. Either way the problem with this device is probably the same as with other anti-air systems - it costs, takes time to produce and to train the operator much much much more than to make a drone.