you can't jump from "it can imitate consciousness" to "therefore it can't actually be conscious."
ai takes in data from its environment, processes it, and changes its output accordingly. it has the capacity to learn.
more importantly, the fact that biological and electronic processes run differently is not an argument on its own. planes don't flap their wings like birds, but they still fly. different mechanisms can produce the same function.
the point that really gets overlooked is this: right now we don't have even one accepted mechanism for consciousness. does it arise only from certain types of neurons? from a certain complexity of information processing? from the capacity to interpret? or …