Yes, there is basically no real evidence for any of the multiverse hypothesis. If they're right then physics and cosmology has nearly ended in its reach of what is knowable. It feels so much like this is premature surrender and physicists are turning themselves into religious philosophers just because they can't think of anything better. If we had been backed into this wall for hundreds of years with nothing better, then I might agree that the program was over, but I think the whole anthropic/multiverse idea is a condemnation of how sold physicists and cosmologists have gotten on one possible solution, and indicative of the fossilization of some of their ideas. We need a new Einstein to do away with the modern-day aethers...
