>where do the variants come from?...<
A variant is a mutation. Mutations take place when replication of the virus in an infected cell is non precise.
Unlike many viruses, the Covid virus replicates in an unstable way. The newly created virus particle in the cell is much more often imprecise than a stable virus.
This means every single infected cell in the entire world can generate mutated (imprecise replicated) virus particles.
Thus, the variants can come from anywhere.
ok...
why should we trust anything these people claim about mutations while they refuse to warn us about the dangers of biden spreading hundreds of thousands of disease carrying invaders across our country during a “global pandemic”???...