Even if you destroy every centrifuge, the scientists still know how to build more.
True. But actually constructing such machines is complicated, time-consuming, and expensive.
Spike protein injections + nuclear war fallout = mass chromosomal damage across humanity
Frankly, nuclear war fallout would cause mass chromosomal damage across humanity all on its own. Radiation is not your friend.
As an aside, has anyone here seen the 80's TV special "The Day After"? Hard-hitting drama about life after nuclear war, didn't pull any punches, primo nightmare fuel.