are you suggesting that a few days of screen time at a bad day care is the screen's fault? Get another daycare that isn't shortstaffed. No kid is gonna be scarred for life over a few days of random youtube videos unless the day care is truly incompetent (which sounds like a good case to sue the day care over. Not Google).
Turns out they were short staffed, and so just gave the kids tons and tons of screen time.
Are you suggesting that the children should be monitored by parents 24/7? No day care? Homeschooling all kids? No babysitters?