I believe the opposite.

I think there’s so much evidence of intelligent alien life visiting us that it takes a massive act of denial and self-delusion to ignore it.

In fact, I think the idea that alien evidence is all faked is a massively unbelievable conspiracy theory. The alien hoax would require a level of secret conspiracy that puts chemtrails or CIA mind control conspiracy theories to shame.

The organization necessary to produce the constant stream of alien evidence would dwarf the Manhattan Project.