The covid virus did not need to be a effective bio-weapon. In fact it was no more deadly than the flu virus. The flu virus kills 10's of thousands of old people every year. When you have Governors mandating covid patients in to nursing homes they could get the death rate to create fear and justify the lockdowns. The nursing home scandal was not exclusive to just a few states here in the US, they were doing it around the planet to get the same results. The MSM would do their part by spreading that fear 24/7 across the television. It was all coordinated effort with many countries participating. The same scenario playing out in many different countries that copied what the  Democrats, Governors, WHO, CDC and MSM were doing here in the US, It was a international cooperation.