The demographic cycles are driving these secular trends. For example, the population boom in 1950. Economy booms as they pay to grow a family and it contracts when their children enter the workforce because this creates excess labor supply. And so on.
Covid wasn't natural it was engineered to produce this protein. I don't think it would do quite the same thing either because there are other proteins such as the N protein. Also the natural immune system doesn't create nearly as many antibodies as the vaccine does
The homologous nature of the spikes to our cells may explain why sometimes side effects emerge and other times they don't. For example, might be an interaction with waveforms such as electromagnetic interference (ie 5G) or pharmacological interactions of some sort
"From a culture where it is normal " ... so it's also establishing a precedent for unequal treatment under the law