You assume that humans know everything and aliens are no smarter or further advanced.
There’s a BS meter image, but no hubris meter image or I’d post it - pegged in this case.
No I assume that alien have the same limits imposed on them by the universe as we do. On the subject of aliens not the kind that vote Democrat illegally, do I believe life exists elsewhere in the universe absolutely. Do I believe there is intelligent life elsewhere - very strong possibility. Do I believe that they have the slightest interest in contacting us - no.