Incels refuse to pay for it because they think it’s beneath them. They want a virginal waifu to be their maid and on-demand sex machine that always agrees with them and provides unconditional emotional support, and they want that while putting in zero effort, money, or time. It’s not actually about the sex; they have a whole bunch of other shit wrong in the head that they’re pinning on sex. If they magically managed to convince another human to have sex with them, that wouldn’t fix any of the underlying problems