That pattern of thinking is like saying that because your brain is all that seems to matter, therefore you must be blind to any notion of your mind governing it. Then you look at the evidence with that conclusion in mind and conclude that the mind is an illusion brought about by brain events in different regions and so on. The problem is this, the brain is all that you decided to see before looking at the evidence so the question of whether or not there actually is a mind actually wasn't even being dealt with in a reasonable manner, instead it will always be imagined away by definition. It was already excluded, yet if it was not then fact of the matter is that there might be a great deal of evidence that the brain is an interface between mind and body. No matter if there were a great deal of evidence it will not be seen as long as scholars studying the issue are systematically conditioned to be close-minded to any possibility of such evidence. If you cannot think of such evidence for your Self then there is nothing more that can be said. (But I may write a little about the evidence later for those who already know that they can think about it.)
Similarly multiverse hypotheses seem to be based on little more than the same type of conditioning through the use of negative stigma words like "magic" as opposed to positive words like "natural" and so on instead of facts, logic and evidence. After all, based on logic and reason one has to wonder just how natural the notion of many universes is, for couldn't one Nature be logically defined as unnatural to all the rest? Or isn't evidence for a multiverse excluded as a matter of principle given that any evidence has to be of this universe by definition? Etc.
Logically the notion may be defined as odd in other ways:
...I did not find the multiverse alternative very helpful. The postulation of multiple universes...is a truly desperate alternative. If the existence of one universe requires an explanation, multiple universes require a much bigger explanation: the problem is increased by the factor of whatever the total number of universes is. It seems a little like the case of a schoolboy whose teacher doesn’t believe his dog ate his homework, so he replaces the first version with the story that a pack of dogs—too many to count—ate his homework.(There is a God: How the world's most notorious atheist changed his mind, by Antony Flew and Roy Abraham Varghese :136-137)
In the end it seems that those who dislike how the verses of the universe were written will always imagine that if only there were enough verses then they could write themselves.