I think prize-winning pr*ck Richard Dawkins called this “theory” ridiculous. Even that monstrosity won’t make such a claim. For one thing, there is absolutely ZERO evidence for the multiverse. It’s mainly a theory invented to try and maneuver atheism around troublesome mathematics.
Dawkins is an evolutionary biologist. Why would his opinion on matters such as this mean anything? There is no “evidence” for a lot of things in the world. Science is about exploring the unknown in an attempt to make it known. So when faced with a question such as this one, many theories are proposed which all work, until some new discovery or new data can refute those theories or add a little more to them.