It's more nuanced than that, I believe.
See, preferring low IQ does not fit the evolutionary perspective in itself... however, that perspective does support females' herd mentality and groupthink. Since our media promotes thugmaxxing and stupidity, the females buy into that.
Another explanation is that males with low IQ are easier to control. The last males to be blackpilled will be the low IQ ones, if it ever even happens to them.
Females only value intelligence for whatever materials it helps the male acquire. Intelligence itself is looked down on by society and seen as unattractive (also correlated with undesirable traits like being inhibited). Someone who is both rich and low IQ is the ideal (i.e. a criminal).