At the 2018 Catholic Family News conference last week, Church historian Roberto De Mattei called upon Catholics to resist the evil of papolatry He called upon lay and clergy alike to fight the errors emanating from wayward pastors, calling the pastors out by name. He pointed out that while cardinals cannot depose a pope, they can declare that a pope, by virtue of heresy, has lost his office.
I have seen calls on various sites for an imperfect synod to do just that. With each insult to the Teachings of Jesus Christ that oozes forth from the Vatican, the case for such a synod grows stronger. My main concern with that is that I don't believe there are enough cardinals with the orthodoxy and/or backbone to undertake such a task.