was wondering if it is possible for Enderman to not beable to move blocks cause they keep picking up grass blocks and moving them and I keep falling in the holes and also its starting to destroy my island 1 block at a time
The settings for Endermen was to this to make the game more challenging. If you have a three block tall space in a mob farm, they can tp out and get your blocks. If you make it two, then they won't spawn.
I Dont really think that is it cause i dont even have a mob farm right now and i dont think its to make it more challenging there not that its just annoying cause they keeping putting holes everywhere in my island
Simple solution: Make a torch grid across your island so that mobs can't spawn. Enderman being able to take blocks is for added challenge, it's your job to prevent it, or deal with it.