The problem is we have great examples of where that absolutely doesn’t work. New Atheists flowing into modern Rationalists and journalists who pick science as their beat is a textbook example of where even what may be a genuine desire for elevated critical thinking turns into weird cults and anti-science screeds wrapped up as if they support science (with no more validity than climate change denial). It’s one of the oldest issues in the book for science itself: failure to account for our own biases creates a distorted understanding of everything and skews the data we gather. Phrenology, eugenics, early psychology (a field so great we had to put in place exhaustive ethics panels to prevent our hubris harming volunteers and producing invalid results at the same time). All of this is an ongoing process of trending towards fixing our mistakes (guess who still gets published most easily? Straight White men) but it’s also something that’s gone into fully blown toxicity on the fringes of academia and into the areas that feed on Dawkinism and similar.
When atheists decide they are suddenly some perfect rational machines and that what the world really needs is to adapt Nazi ideology to target a different minority religion (Islamophobia) then it absolutely needs to be pointed out that they have constructed a faith around hatred. When that same group are defending literal calls to implement the same eugenics arguments made 100 years ago to “purge the species of disability” then it cannot be left as if it was a reasonable discussion and a font of critical thinking. When journalists and TWEFs decide to ignore the body of science and weaponise transphobia via fringe studies and discredited scientists who abuse children then we must stand up and call out how science is being misused - that a blind faith in some inward rationality is being used to ignore a severe domain-specific knowledge deficit from the proponents of these ideas. These are extremely dark paths which many people may not even realise they are being led down by some fetishisation of a mythical human rationality combined with common societal biases and a few actively evil participants who have crossed lines in what they have decided is acceptable.
When it comes to people promoting eugenics, denying the very humanity of marginalised and oppressed populations then we absolutely have a duty to declare things wrong: morally, ideologically, and factually. That these abhorrent ideas have taken hold in communities claiming to be all about open debate and the pursuit of truth (via such things as evaluation of research, critical thinking, and asking for sources) serves as a major warning to us all that even good intentions cannot save us from the darkest paths through collective ignorance.