One of the best illustrations of Conservative "science" is the theory that states the speed of light is actually variable, not constant. It is always advanced by creationist "scientists", many of whom have no scientific degree whatsoever. This conveniently explains away the fact that the stars we see at night are not actually millions or hundreds of millions of light years old, but actually less than 6.000 years old, as in the Young Earth Creationist Theory.
Despite mountains of evidence to the contrary by REAL astrophysicists, the variable speed of light theory persists because it suits the needs of those who desperately want us to think our planet is "young". Yep, dinosaurs are either fake or became extinct a few thousand years ago, The Grand Canyon was cut by Noah's Flood etc. Think Ken Ham's creationist museum where children had pet dinos.
To your point, all it takes is someone on YouTube who claims to be qualified, giving them the "answers" they want to hear, even if there is zero basis in fact to support what they're claiming.
It's shocking how gullible and desperate people can get when they need to "prove" something.