If they are so technically advanced, they don’t have to be subtle. If they are so secretive they would make good and sure that they remain a secret and would have a US government thaT is competent and in an unchallenged global position. If they were real, Biden wouldn’t be president, and there would be no opposition. They’d see to it.
To each his own.
Imagine a committee of the smartest ants in the room trying to explain human behavior.
Your post reminds me of that.
;-)