it seems like the existing consensus is that the most reasonable path to eventual mushroom digestion is to develop a symbiosis with a new gut bacteria, rather than to edit our genome.

...even if editing our genome to digest mushrooms (and cellulose, while we're at it) sounds like so much fun. doesn't it?

see, this is why i'm not a fucking conservative, and you probably are.

that's how we got to being able to digest yeast (which is also a fungus), after all - we have bacteria in our gut that do it for us. 

so, how do i get me some mushroom digesting gut bacteria, then?

https://www.popsci.com/how-human-gut-bacteria-deal-fermented-foods/