It sounds like they could become Covid mutant factories. And while that might make it less lethal, which could be a good thing. It might make it even more deadly.
The "vaccines" neither prevent contracting nor transmitting an infection with SARS-CoV-2. By definition, the "vaccinated" that develop the disease have a variant that the "vaccine" can not arrest. Any transmission to others identically "vaccinated" will encounter no resistance at all.
The spike protein IS the bioweapon. Injecting just spike protein triggers the same blood disorders as a natural infection with SARS-CoV-2. The "vaccine" is pure bioweapon. It is free to circulate through the body and has been observed collecting in the blood vessels, brain, ovaries, testes and other organs. The spike protein in the "vaccinated" can pass to unvaccinated persons by physical contact initiating sore throats, diarrhea and nose bleeds.