That would be one approach, though I think it is unlikely to be a successful one.
The topic is autonomous drones. Presumably these drones don't stop to go through customs on the way to their targets, and have no reason to respect borders. They're too small for existing radar to track, so enforcement would be difficult.
For that matter, since they can be left in a quiescent state for relatively long periods, there's no requirement that anyone involved be inside the country. They could be shipped internationally through existing shipping services to arbitrary addresses near a target, unpack themselves by cutting through their packaging, and attack a preplanned target.
Literal enemies don't need an invitation. Ukraine was able to smuggle several literal trucks loaded with weapons, deep into literal enemy territory, and put them near airbases where cruise missiles were launched from.
Let's not be naive. Aid programs are a great idea when practical, and I'm certainly not in favor of indiscriminate bombing. But unfortunately in many countries, including Middle East conflict zones, any foreign aid is just stolen by local armed groups and used to fund terrorist activities. How do you think the leaders of Hamas accumulated billions in foreign bank accounts?
Leaders of Hamas has no bank accounts, AFAIK. Did you mean cryptocurrencies? If so, it's unlikely that these funds are personal savings.
Usually, locals doesn't steal from locals in conflict zones, because their throats, or throats of their families, will be cut by other armed locals in no time.
Invaders and mercenaries often rob or kill locals in many, many cases.
Don't be naive. Leaders of Hamas have control of foreign bank accounts. Probably cryptocurrencies as well now. Those funds are the personal proceeds of theft and embezzlement. They steal aid money directly, or steal supplies and sell them for cash. The locals can't do anything to stop them because Hamas has all of the weapons: there are no other armed locals. Hamas violently suppresses the locals who even try to protest against theft of foreign aid.
I don't think any country welcomes extremists like ISIS combatants willingly. So you would need a way to weed them out. It's not just difficult, it's practically impossible.
