Both sides have used off the shelf drones available in department stores and hobby shops meant for recreational enthusiasts. They have been armed and used effectively.
There is little doubt that terrorists and sleeped cells within the US have noted this use of drones. Wonder if the FBI that spends so much time, money and manpower tracking gun sales and arresting pro life activists, school board critics and political opponents of Biden, have the inclination to monitor and arrest these terrorists who wish to mass slaughter Americans. Can never forget that when the FBI was informed that Arab students at a Arizona flight school only want to learn how to manuveur and fly a multi engine jet already in flight but not how to land or take off, the FBI did not thoroughly investigate lest they be guilty of “profiling”. Sorry doubt they are currently any good at protecting Americans from enemies foreign or domestic.
Hobbyist drones are quadcopters, these are real airplanes.