Just to add to this, I think it's also that they don't deny science, they deny scientists.
Conspiracy theorists often fixate on individuals- Fauci, RFK Jr, Trump, Boris Johnson- who are either idolised or demonised, depending on which 'side' they're on.
I think they approach science in much the same way. Any claim by a scientist/ expert on their side- e.g. Judy Mikovitz or Richard Gage- is held to be true, not because of the validity of the actual research or claim, but because they are 'plucky whistleblowers' or 'the voice of truth'.
On the other side of it, anything presented that contradicts their beliefs is rejected, again, not on the merits or flaws of the actual science, but because of vague claims that the individual scientists have been 'got to' or paid off in some way.
It is very rare- at least, in my own experience- to see the actual studies examined, and subjected to detailed, factual rebuttals, by the conspiracy/fundamentalist side. This is not true for the debunkers: whilst the characters and track records of the claimants are looked at, the actual research is studied as well, and in far more detail.