am I being stupid?

My hubby has work today, but they work him 7 days a week, rarely gets a day off or if he's only supposed to be there for a little while they make him stay later, 12 hour shifts. 
Anyways, he claims his manager is being an asshole lately, questioning him. So to get a well deserved break and to stick it to the asshole on the busiest day of the week, he wants to call out. Only problem I'm having is that he supports US, so anything that's gonna risk his job is always gonna get a no from me, but I told him I trust you. If you think it'll be okay, stay home. If you think you're gonna be risking your neck, go to work. I support you. 
He gets fussy and says, well of course I can't do it now, you're not supporting me. I can't do anything. 
Am I wrong for feeling like he should go in? I hate how much they work him but if he's the only one able to work right now and everything he does it to make sure we're good, why chance it?

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