5-10 years ago, and certainly in the 90's (as I say Musk is more of a 90's democrat), the main stream democratic party would have never said people should have to wear masks or get vaccines for something that kills less than 1% of the people that have symptoms in the first place, let alone those that don't exibit any symptoms and therefore don't get tested. The right hasn't moved further right, nor has the middle moved further right, but the left has gone waaaay left in America in a ridiculously short time. And not just on Covid.
Bold, this is fairly high number actually. Current death rate is 1.2%
If you have no measure you will end in a situation where everybody gets the virus and then 1% of global population (over 80 million people) dies. This would be a catastrophe beyond any war in human History. Getting vaccines and wearing masks is a cheap price to prevent such disaster