Bismillah
One more point I liked to mention here, is that sorry everyone but the Ayah is very clear and it does not make polygyny conditional on any specific circumstances. Us trying to find reasons why it is permitted is our own problem. BUt the Ayha is very clear. so be it to provide for a sister, ....etc or even to save a man from committing zina because he is just built in that he can not be satisifed with one woman, for this type of men also Allah made a legal way to solve his problem. It seves as a safety valve for such men. Allah when He Sets rules, He Sets rules to include all categories of mankind. For example why dont we discuss the duration of fasting starting from Fajr till maghreb. Some poeple just cant take it, but Allah regulated it this way. why dont we discuss this??
Now this has nothing to do with the necessity for the man to adopt equality, this is where accountability comes. Allah Gave a permission yes, but with responsibility, if the man does not fulfill it, he is in trouble and this is his own problem not the system.
Am I making sense now, was I able to convey the point?????????