The prohibition against polygamy for most Jewry has been in affect for over a thousand years although the prohibition could have been permitted 776 years ago. If the greatest Rabbis in the past 7 centuries didn’t overturn this prohibition suddenly some poster on the coffee room is suddenly going to overturn it.
It is not going to happen I don’t care how great you think the Rabbis and Rabbinuts who post on this thread are. Nobody in his right mind wants more than one wife at a time.
The question is will having more wives increase the Jewish Population, which in turn will hasten the Guellah (Coming of Masiach) or not. Will he come before all souls that need to be born are born?