e.g. the organ harvesting one from here: https://plato.stanford.edu/entries/consequentialism/#ConWhaRigRelRul
Could you elaborate further what you have in mind with a moral cluelessness response?
Personally, I’ll say that most of those supposed anti-consequentialist thought experiments are helpful for illustrating why you need to be thoughtful when applying consequentialism (as is the case with every moral framework), but they do nothing to refute consequentialism. For example, there are many perfectly good utilitarian reasons to not conduct organ harvesting, such as threatening trust in institutions, risking your ability to do good in the future, the fact that you are considering that option suggests you might be suffering from delusion or some other problem which impairs your ability to assess the likelihood of being discovered or the benefits of harvesting the organs, etc.