These "Objections to the interpretation" and "Reception" sections of the Wikipedia article on the "Von Neumann–Wigner interpretation," since I think that an actual scientific article citation would to at too advanced a reading level, will serve as some background to what I will say. I have a new personal policy of not speaking to forum trolls and dilettantes, so this exchange will likely be the last time me and the OP are in conversation.
https://en.wikipedia.org/wiki/Von_Neuma ... rpretation
https://en.wikipedia.org/wiki/Von_Neuma ... #Reception
The chief citation for this section is the survey entitled "A Snapshot of Foundational Attitudes Toward Quantum Mechanics" by M. Schlosshauer, J. Koer, and A. Zeilinger, published in 2013, in "Studies in History and Philosophy of Science," Part B, "Studies in History and Philosophy of Modern Physics," Volume 44, Issue 3. From the citation in the Wikipedia article:
A poll was conducted at a quantum mechanics conference in 2011 using 33 participants (including physicists, mathematicians, and philosophers). Researchers found that 6% of participants (2 of the 33) indicated that they believed the observer "plays a distinguished physical role (e.g., wave-function collapse by consciousness)".
This will put a pin in the absurd claim that "All top quantum researchers that have done these experiments pretty much agree with" Kaku concerning this interpretation, while the longer response remains pending.
On the contrary to the above claim, the statistical number is far closer to
6% who share Kaku's interpretation of quantum mechanics. I believe that my interlocutor is invoking a theistic version of the Von Neumann–Wigner interpretation wherein the mind of God dictates the wave-function either irrespective of or in addition to the consciousnesses of sentient beings who are not "God." I consider this an action of "pass the puck," wherein someone refuses to take responsibility for their actions and/or refuses to admit a consequence of a claim they have made and modifies it. It is very similar to the non-Canadian expression of "moving the goalposts." My subsequent post will outline why scientistists who disagree with Kaku (i.e. most scientists) disagree with his personal opinions that sometimes get confused with actual science he teaches without being what I previous described as "science heretics."