While I agree that AFK fish farms and zero-tick farms are
incredibly useful early game, they are bugs, and they're overpowered. You can still create very efficient cactus/bamboo/sugarcane farms that aren't too big. As for the food issue,
Hoglins are being added in 1.16 and Hoglin farms will be a great source of food. And it's also important to remember that Minecraft will probably
never be a bug-free game, people (ilmango) will probably continue to find and exploit bugs. Also if you think that getting rid of these bugs ruins the game, then do you also think that the game was ruined
before those farms were discovered.
kindest regards, smcbot.