While certainly an interesting observation, memes either make fun of campy parts or laugh along with it. While LOTR had a lot of darkness, it was girded with friendship and laughter. Dune is a serious movie that doesn't lighten up. Also, the timing of Dunes release (well after the birth of netflix and the death of cinema), the that lots of people were still being gay and isolating from covid, and the fact that there's a roughly 50/50 chance a guy likes sci fi, and less than a 2% chance a woman likes it. There's a little more to it than simply not being liked.