I'm just a mere software engineer, so I have no idea about this stuff. But, I feel like this sentiment "has to be an endgame to these measures" feels like wishful thinking.

Why is it impossible that we're headed for an economic catastrophe until a vaccine is out? I can totally see it happening - something where we will have to ration out our basic supplies even. <-- already happening wrt some stuff.

That would just be the cost of saving a few million lives.