Erdogan’s supports are Islamists who’ve been suppressed and the worst of the worst are probably now just emerging.
The perimeter of the base is guarded by the Turk military. As I’ve said before, Erdogan may be struggling to appear aggressive enough for zealots that have been suppressed for a CENTURY.
So...let’s say a crowd of protestors numbering 5, 8 or 10,000 decide to march on the airbase spurred on by some Imam. What do the Turk’s guarding the parimeter do, given their resistance could get them killed on the spot.
This could quickly get beyond Erdogan’s control.
Not now, he is sowing the seed and will reap his harvest later. It won't be pretty.