Qoran clearly lets men take more than one wife. Nothing is being said there with regards to the wars, etc. Muslims take their life instructions from Qoran so you can't blame them for taking more than one wife even if you see it as abusing Qoran instructions. If a law is "free'' to be abused by the people, it's the vulnerability of that law not the problem of people who abuse it in a way which suits them the most. Suppose that in a particular situation, the government legitimates it for people to carry guns with themselves however this isn't being mentioned that this is an interim law. When the case is over, when the point of carrying guns doesn't stand anymore, some people might go on walking armed on the streets because there's no law prohibiting them. You can't blame them. The law and the ones who've legitimated it are to blame.
Is this mentioned in Qoran or you think Qoran needs to be adjusted as time goes?
Ok, Hoori...
I have to tell you something important because you mentioned many times that as long as that was mentioned in Quran, then it should be applied by all Muslims as it is.
Let me ask you something. Did you read in Quran that if you want to pray the Dawn Prayer, you should kneel two times and kowtow 4 times?? Of course, No. We knew that detail exactly by what Prophet Mohammad told us to do as he explained the general instructions mentioned in Quran...
In the same way, we should not take the verse about marrying more than one woman from Quran as it is without reading the conditions imposed on those who wanted to marry.
In Islam, nowadays many Muslims tend to take only Quran in consideration ignoring the other sources of legislation. We can not do that ever because if we ignore any of these sources, this will be reflected in making partial practicing for our religion, which may lead to making acts that do not agree with Islam.
The main sources of legislation are arranged
according to its reliability and dependability:
1- Quran: which is the strongest one. And no other source should have anything contradictory to what it says, but other sources may explain what is mentioned in Quran if it needs clarification.
2- Hadeeth (Sunna): which are the sayings and the acts of Prophet Mohammad. These are gathered in two books written by two early Muslim scholars, Bukhari and Muslem.
3- Ijmaa: Consensus of all the Muslim scholars in one era on a legislation. This source was the result of a saying by Prophet Mohammad when he said: "My nation will not have consensus on an aberrant legislation". One of the main legislations that are followed using this source is the percentages of inheritance, after the death of someone, that are not mentioned in Quran.
4- Qiyas: Which means almost estimation and trying to think of the nearest Islamic legislation mentioned in Quran and Sunna to the case under testing.
5- Ijtehad: Assiduity. Which means making big efforts to understand the texts of the first four sources when no other clarification is there in these four sources.
Finally, if something is mentioned Quran, it should not be taken as it is with some interpretation of some random guy here or there just to fill his personal desires.