I'm not sure you can go with a blanket 'the fans don't want hybrids' or any of the other solutions that have been around in the last 5 years, when F1 has grown vastly in terms of fans, attending races and watching on TV. The concept of a screaming V10 is probably pretty alien to the average F1 fan today and certainly likely not welcome in the cities Liberty increasingly wants to host races.
The diehards, or those of us from well into the previous century? Yeah sure, possibly. Personally I like the tech aspect, which makes me feel like these new powertrains are actually a step back from what we had, without the MGU-H.
The car makers want stuff that they can vaguely link to their road cars (hybrids, batteries), stuff they can use to launder their reps / use as a fig leaf to try and extend ICE sales (e-fuels) and ultimately to market their product to as big an audience as possible (street tracks, Netflix etc). Where they got bogged down was the 50/50 split, which seems like a marketing idea that got out of hand. Make it 60/40 or something and I doubt the average person on the street would know or care either way, but it still ticks the boxes the car makers want, and allows the politicians of whatever city they're racing in to claim the cars are green / net zero etc etc.
So yeah, simple, short term fix? Change the power split towards the ICE, revisit if / when battery tech allows it.

