In the same way that cultists give human sacrifices to Cthulhu specifically to eat.
I’m pretty sure the fruits are screaming too.
The whole deal is that we get to eat the fruit, and in return we provide the seeds within with a nice nitrogen-rich deposition nice and far from the parent plant.
It’s not a death cult, it’s a sex cult. The fruits might be screaming, but not in pain
And the deal with Cthulhu is that he gets to devour whoever you’ve sacrificed, and in return he provides a benefit to the survivors: allowing them to live long enough to provide more sacrifices. It’s basically the same deal.
Also, if anyone reading this happens to be a seed on a fruit meant to be devoured by humans then I have bad news about your final destination: it’s rather a stinky place that is not in any way conducive to your growth. The cake is a lie.