That might have been what one sign said, but picking that as if it were "their argument", let alone the best argument, is sample bias and clearly intended to belittle. That's politics: build up your own side as much as possible, smear the other side as much as possible. If someone actually wanted to be fair, they'd reference a stronger case for protesting the lockdown, such as the economic pain it has inflicted and the case that it also leads to deaths, such as by suicide and addiction, as well as social ills like increased child abuse and domestic violence. I'm not trying to take that side, just pointing out that intellectual honesty is the first casualty of politics, just like truth is the first casualty of war.