> I strongly suspect BPA-free plastics have similar endocrine effects

Based on what? BPA is the monomer which makes up polycarbonate plastic, and it's a simple molecule which has been known to be an estrogen analogue for nearly 100 years. Other kinds of plastics besides polycarbonate are made from much different kinds of monomers which have no structural similarity to BPA, so why should we assume that the risk carries over? The mechanism that makes BPA dangerous has nothing to do with the fact that it can be turned into a plastic.