Think about it, if Trump is taken out by an American, that could trigger a civil war. But if a foreigner does it, that’s different.
When Trump was running for president in 2015 he flew down to see Mexico’s presidente. Due to threats from the cartels Trump had to lease a plain wrap jet to fly into Mexico City airspace so it wouldn’t be shot down.
I see your point but Trump is under constant threat. keeping him safe is a 24/7 proposition no matter where he is.