It's usually stated by Psychologists that you can't argue about someone's delusion, because no matter what you say they'll still be deluded.
In the case of Victor, that's talking about Veegtrons, that's why it's simple to just joke about what it is because in all practical purposes you wouldn't be able to dissuade him from his belief.
It's alright though Victor, you're not alone, many people have "delusions" (usually of Grandeur), I'm a sucker for a reasoning into parallel universes being used to build an Emulator platform that this simulated universe runs on, and quite rightly I'll continue to reason that no matter anyone says.