I’m actually surprised that something like this hasn’t happened in earnest already. There are lots of crazy people online (and off) who are obsessed with Area 51. Perhaps most of them don’t have good enough organizational skills to amass a large enough crowd...
At some point, the government is probably going to need to move that base elsewhere.
Or
They could release all the little green men who are “residents” there and sell off their spaceships (but, of course, only to people who have permits to drive alien space ships).
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“The darkness shall be the light, and the stillness the dancing.”
— from Four Quartets by T.S. Eliot