Or usually they give a lazy response like:

The science is out there if you just bother to look for it.

The Truth Is Out there!

Since I think I know enough science to have a general idea on how much evidence they need and have to back their claims, I'll have to regard their truth like a theory of a government conspiracy to cover-up extraterrestrials.

If my colleague, Fatima, is frequently pestered with questions about Islam, I can understand if she gets a little impatient and tells people to back off. If Fatima went around audibly pointing at people and calling their behaviour haram and started acting a bit like the Saudi Morality Police, her refusal to answer (what I assume are) good-faith questions about why she believes what she believes or behaves the way she does would be grating at best.

Ah, but you see- the questions themselves are haram...

If you don't want people to ask, stop making yourself the centre of attention.

Agreed. "Educate yourself" is something hear a lot of from genderists. When they fall back on that it usually means they don't themselves even have the knowledge they are expecting me to seek and are attempting to cop out.