Again, it is an aircraft. Ask yourself that same question, only substitute “Cessna” for “drone”.

It's a felony to attempt to damage, destroy, disable or wreck any aircraft. How you do it doesn't matter.

You'll want to examine this a bit more closely: is the aircraft in a location it should not be? Above your house is likely to be a valid place for a drone, whether you like it or not. Exceptions are for things like airports (other air traffic) and sporting events (large crowds).

So when you use a net to capture the drone out of the sky, you are not collecting it from its location of abandonment on your property, you are stealing it. (That's assuming more lax rules on disabling drones vs. other aircraft, per the sibling comment.)

But that’s really all assuming; I’m not a lawyer, just a layman with an interest in logical systems.

Edit:

I should add that I generally think about the regulations for small drones (<.55 pounds and some other things) rather than the <55-pound ones because I have looked into flying one. I still think it’s maybe not the best idea to net a 30+ pound piece of flying machinery but the pilot certainly has more things to worry about.

If it fell in "aircraft in distress" case you're fucked because it was operating legally.