Personally, I believe that the vax was a depopulation bioweapon experiment, given the DoD was running the show (Operation Warpspeed). Hence the batch variability, with some very high kill rates in certain batches.

We should also note the weaponised propaganda trial run.

ALL safety signals were deliberately ignored, because it wasn't a vax as we previously considered them to be.

Birth rates are down in heavily vaxxed countries, but they were falling anyway and one thing COVID and the vax did was magnify the war between the sexes i.e. liberal women vs conservative men. Thus fewer people are forming relationships and procreating.

My estimate is overall the ideological battle between the sexes is having a greater effect on birthrates than the vax.