When progressives use the phrase “question science,” what they mean is that no one should question the leftist politicization of science.
They see science not as a method of observation and investigation, but as a belief system that it is blasphemy to “deny,” at least when its conclusions conform to their agenda. Leftists are perfectly comfortable denying science – basic biology, for example – when it doesn’t suit their political needs.
When science realized they could politicize it through evolution and take God out of creation they politicized all science. There is very little actual science anymore.