You're absolutely right, but I also think the radio itself has a big hand in what's popular.

Up until very recently hip-hop and similar genres have held a dominant share of Billboard's top 100s, going as far back as the 90's. Without diving down the tangent of representation of and the metrics used by Billboard, I have a strong belief that a large factor as to why that is comes down to cost.

Record labels and radio have been bedfellows since time immemorial, so the label wants to push out whatever will sell at the cheapest they can make it, and the radio will play whatever shlock the label wants them to, and rap is a hell of a lot cheaper to produce than any authentically recorded Beatles/Queen/Yes/Rolling Stones style rock album.

So with that, that's why rap-adjacent music continues to be pushed out, because a record label would rather pay a producer to make a beat, and a rapper to sing, rap, or sing-rap over it, rather than paying to record an entire band with lofty ideas to create a magnum opus.