But this is pure wild speculation. You are speculating about the motives of a thing that you speculate to exist.
That is the whole crazy rabbit trail of assumptions that leads to conspiracy theories, it is just self propagating speculation.
The "Logic" chain here:
(Fact) Navy releases videos of blurry somethings > Attempt to identify > Assume no possible terrestrial explanation > Process of elimination, must be extraterrestial > Compare object to preconceived notions of Aliens > Perfect Match! Aliens confirmed > Why are aliens here? > Assume identical motivations to myself > Notice that none of the facts fit your assumptions > Assume government coverup of "real" facts that would fit your speculations > Assign motives to "Government" > Notice government doesn't actually have those motives > Imagine creepy hidden "Government" that conceals its identity > Assign enormous power to this hidden government (They will need it to cover up so much shit) > Assume hidden government is evil, because they are hiding > Plan to resist this imagined evil organization > Find fellow believers > Learn about their crazy ideas > Notice how they also believe in shadow governments > Trump 2020! MAGA! #QANON