That's exactly what I'm saying here. Believing in many worlds doesn't pay its rent. It also doesn't match Bayes or Occam's Razor. I agree that it doesn't make sense to privilege either their existence or their nonexistence, that's exactly what I was contending in the grandparent, that is why I said it doesn't make sense to say that "it's more probable that [they] exist than that they don't".

You're confusing my position for the one that I am attacking. Now, of course, I might be mistaken about what EY is saying and actually many worlds has other evidence than an appeal to Bayes Theorem or to Occam's Razor. But I don't think so. I even believe that one of the quantum mechanics posts explicitly concedes that due to the nature of many worlds theory it is not falsifiable.