It again sounds like you only want to volunteer your time to this crisis if it involves the unlikely circumstance of strike busting. Very noble. I hope you gave yourself a big pat on the back.
If a new factory opened up in my town making ventilators and there was a critical labor shortage with no available workers, I would show up for that too. In this hypothetical there's no striking workers to "spite".
Imagining you understand my motivations is a critical thinking error. Attributing bad motivations to me unjustly doesn't just make you wrong, it makes you a bad person.
How do you know this? Did you apply, and they said your help was not needed at this time? Is your name on file, will they call you back if there is an opening?
Have you called all local charities in your area and offered to volunteer your time for free?
You're waiting for magical strikes and magical ventilator companies to show up, yet you are eager to volunteer other's time, while coming up empty on actually volunteering your own.