The thing you're missing, is that the health care system is already overburdened. Health care workers are not only getting infected, but dying due to the lack of currently available resources. As the USA scrambles to procure these resources, quarantining is the best possible solution to buying them time. Your little speech would be good if you were a cheerleader in high school and want everyone to rah rah, but in the real world you need substance. People are dying on hospital floors and being dumped in body pits by the hundred because of a lack of resources to combat a virus totally different to the flu.
That is why quarantining is important now. Yes, the middle class and wealthy can complain about others not working all they want, but it is the actual workers who are disproportionately affected, whether they be $15/hr restaurant workers, $25/hr construction workers or $82k a year nurses. Actual workers. So it is out of consideration for an already overburdened system, and to not make things worse, we quarantine for a while and NOT go to sporting events, music festivals, restaurants etc. because it is the country's obligation to treat those who are critically ill whether you like it or not. I'm getting hurt financially but as someone part of the human race, I accept it is necessary.