invulnerable super saiyan vampires is bad writing
I'm not going to bother with the rest of the post, because it's just more of that extremely impressive 60-IQ V5 fanboying that's as tiring as it is pathetic, but I gotta reply to this one.
There are no "Invulnerable Super Saiyan Vampires", and there never were any, in any of the VTM editions throughout the years, barring Caine himself. In fact, I'd argue the trend was always the exact opposite the further in time you go. Methuselahs being described as nigh-omnipotent gods on one page, then getting effortlessly Diablerized on the very next by some "literally who" retard (even some fucking Antediluvians got this treatment, like [Lasombra]).
However, the way it used to be when the metaplot still made even the tiniest sense was that they didn't need to be invulnerable to survive for hundreds, thousands of years, they were just so good at manipulating others into doing their bidding from complete obscurity that nobody other than their Childer were even aware they existed, not to mention absolute absurdities like mortal agencies finding their exact location and drone bombing them by complete surprise.