You misunderstand me. When someone starts an argument with "I'm all about X, but..." it means they are not really "all" about X. If they were "all" about it, there would not be a condition or qualification introduced by the "but". It's not specific to your argument, it's just a pet peeve of mine.
Now, as for your actual specific argument. Stripped down to its essence, I hear you saying "we, as a society, should tolerate Y number of deaths among teachers, administrators, aides, bus drivers, cafeteria workers, school secretaries etc. in order to have in-person schooling". If that is indeed your argument, you should specify that number Y. And you shouldn't really be surprised that the aforementioned groups might have a different view of what an acceptable number Y might be.
You could be looking at the military, where we risk the lives of our soldiers, sailors, airmen and Marines every day in order to protect our nation. But that is a far different story, as the risk-reward analysis has always been clearly and openly expressed and understood, by the public in general and by those who serve. When I was a Navy submariner, I certainly understood going in there was a non-zero probability that once my boat submerged, it would not surface again. But that was a decision I voluntarily made. And the nation understood that as well, which is one of the reasons why veterans are largely honored by the people of this country.
Educators are different. They signed up to help teach our children, not to risk their lives to provide daycare. In fact, we have laws in this country to protect the health and safety of workers just so they don't have to risk their lives for their jobs. Unlike the military, where you can't say "no" after you've raised your hand and sworn the oath, educators are not required by law to accept the risk you would have them take. Even if you could subvert the workplace safety laws, they may quit in massive numbers and there is nothing you can do to stop them; they are not draftees or slaves. And replacing them with qualified people willing to take the risk may prove to be more expensive than the taxpayers are willing to bear.