Modern military technology seems to become too costly. Recent conflicts in the middle east seem to indicate that low-cost approaches can have some terribly effective successes against much more sophisticated militaries.
Modern consumer drones are of great use now - these do not cost that much but are basically only produced in China. FPV drones can almost be crafted locally, though, using off the shelf components.
The COTS components are all made in China. That's why no Western military is planning to use them in wartime - that supply chain is depending on the good will of an adversary.