We have these things called "courts" that are well-suited to addressing complaints like this one.
But a strike, right now, is not the answer. It's just pouring gasoline on the fire. Counterproductive at all levels. Labor organization is all about picking your battles, and this is the wrong fight in the wrong place at the wrong time. His beef with Amazon needs to be settled in a courtroom, not on a picket line.
The only worse thing he could have done would be to try to lead a strike during a world war.
Perhaps the workers should just continue to allow amazon to get away with exposing them to covid-19 with no notification, for the greater good.
That’s how we came to have employer-provided healthcare:
https://www.nytimes.com/2017/09/05/upshot/the-real-reason-th...
And it's arguably a terrible system that we're still stuck with today, with the effect of handcuffing productive people to their desks in dead-end jobs. We'd be far better off with universal coverage that's not tied to employment... and yes, that means better-off economically.
If he took health and safety so seriously then he wouldn't be breaking his quarantine after he claimed he had direct contact with someone carrying the virus to drive up to work potentially exposing all his co-workers to the virus.