Christian men can marry more than one wife no bible verses is against polygamy
I feel people make religion and some follow them blindly or as per own self motives. Anyone, irrespective of religion should be allowed to marry however how many people they want. Should be left to personal choice and of the partner(s). If polygamy is allowed and common in one religion, it should be allowed in other religion too.
The Bible never said anything about polygamy so to my understanding in general, everyone is free to do what he/she likes but the law has a totally different view of thing where polygamy is strongly forbidden but when you go to most Islamic countries, there is nothing wrong with that but it's pegged at a man having five wives at most.