Many viruses have spike proteins, not just corona, They are naturally occurring and not synthetic. They have a scary name but they are really just a mechanism to attach the virus to a host cell so it can inject the capsid contents (DNA) into the cell and hijack it to replicate the virus.

Much of the damage described is due to the virus, the inflammation, the cognitive function problems and the circulatory problems, were not cause by the vaccine.

I was lucky enough to contract COVID right at the beginning of the outbreak, It took me down for a week, as sick as I have ever been. If it were experimented on for gain of function, at least it mutated to lesser strains instead of amping up. This could have been really bad, and one doctor's opinion about the mRNA delivery system does not meet the criteria for a good study of the issue.