Ukrainian drones now spray 4,000° F thermite streams right into Russian trenches

If you're deploying weapons on your own territory to reduce the operational capacity of an invading force then it's by definition defending your country.

If you have a problem w/ this you're going to have to cycle to the next argument because this one is nonsense. NEXT.

Isn’t it though?

Any invaders in that tree line are likely having a very bad time continuing their invasionary goals.