The same as homosexuality. This is my own opinion. After all different secular countries have different outlook on things and laws.
Both homosexuality and polygamy will be decriminalized, but have no legal status. Demo criminalized but not legalized. It is kind of a neutral outlook. Government should be sin-blind.
For example, gay unions do not have legal status. However, if a citizen chooses that path, he would not be discriminated against but also his union would not be recognized under the law. Discriminating against a Lebanese on any basis, including sexual preference should be against the law. Gay union or marriage is a privilege that can be campaigned for and later be granted or not granted.
As for polygamy, the law will regard only the first registered wedding. Subsequent wives cannot be married legally in a civil court or under common law.
This is a tribal practice. It is simply murder. Perpetrators would be killed for killing, if we continue having capital punishment, or they can face life imprisonment for murder.
A non issue in my opinion. Many so called Muslims drink. Even in their areas or in their homes. It should be a private choice and freedom granted to those who want to drink or deal with alcohol. If the people are truly holy and observant of their faith, they require no one to compel them to drink or not to drink. After all, we are taught "Let there be no compulsion in religion. Truth has been made manifest from falsehood". I have come across staunch Christians and atheists who do not drink. And ironically, I have come across Muslims who drink. They even stop praying under the excuse that they can't stop drinking "for now". We are not holy as a nation as we pretend to be. We have transformed religion into a vehicle to promote division and evil and not a vehicle to promote spirituality and virtue and charity. Personally, even if you drop me into an ocean of alcohol and cigarettes, I will NEVER drink or smoke. I even detest smoking more than drinking. I see them as unhealthy habits and expending to poison one's own health.