Stepping on the breaks perfectly align with what we know scientifically. People think of science as something very narrow – but it's also evidence and rationality. What China and South Korea have done works. What other alternatives do we have?
What all the western countries have done. A half arsed lockdown, not like China's, without testing-and-tracing, not like South Korea's. There's still no evidence that a half arsed lockdown is unsuccessful and good reason to believe they generally aren't.