I don't think there should be forced polygamy - arranged marriages...that's cruel and really isn't fair to the women.
But if the women don't mind then maybe it should be legal.
Some women might even find it attractive if the guy is wealthy, prosperous and ambitious.
It would be like living on a kibbutz except without all the commies and without other men...You know, it could be a convenient little arrangement...
I would probably prefer to be with one amazing woman who truly loves me and satisfies me in every way, but if I can't find that then I'm going for glitz, glamour, and big harems all the way.
Maybe 5 or 10 of my wives will be IDF girls, so they can help protect the harem...That way I won't even need to hire guards.