I may have a different take on this than others, but IMO if it ain't broke don't fix it. The taxi system on Cozumel is effective at moving people around economically, and it is the result of years of wangling to find the balance point between the interests of the taxistas and their customers. Taxis are an important source of income for many of the people of Cozumel, and Uber, etc. are trying to muscle in and take it away from them, so naturally they are upset. Personally, I have no use for Uber on Cozumel and I would be just as happy if they would stay off the island. YMMV.