How to make a mob attack everyone except its own kind

You can't with Mcreator

Ask for code if anyone can help

Create a procedure in "when the entity spawn" that say :

define a entity NBT tag [your tag] to event/target entity

In your entity AI, in the code that say "attack everyone", add a condition of start :

| If entity target has the tag [your tag]

|- return false

return true

how did you made this code, @TheDragon'sSon ?

I tried to create what you described, but when you start the game stupidly crashes T-T