Assuming these suggestions would be possible, who will condone wasting a lot of military resources on this?

I think though the big picture is that if these are so ubiquitous and easily deployable, then using one of these tactics to take one down is a waste of time and resources. Imagine detonating an EMP bomb 5 miles into the air to kill the surrounding drones (ignoring the possible backlash if an airplane or something else gets caught in the blast and causes an accident), only to have 10 more drones pop back up.

This is all assuming of course that this idea can work.