The holocaust did not affect 100% of the global Jewish population.

Sure, but for this to hold true, 100% of the 85+ year old Jewish population would need to be holocaust survivors, which just isn't possible. Being a Jewish person that was alive somewhere on earth during the years the holocaust happened does not make you a "holocaust survivor".

I'm not a survivor of the war in Ukraine, for example, just because I'm alive and living life completely unaffected on the other side of the planet.