If the ‘government’ has the power to give immunity from lawsuits to Pfizer, et al, then the ‘government’ takes that responsibility upon itself....................
“then the ‘government’ takes that responsibility upon itself”
Well, good luck suing the US federal government, in a federal court, under a federal judge. Oh yes, don’t forget it has sovereign immunity (you can’t sue the government unless the government gives you permission to sue it).