many Ulama actually discourage marrying multiple wives due to reasons such as problems occuring in the future between the wives and the children from each wife etc. that does not mean they prohibit multiple wives. they just point out the problems.
[/quote]This is incorrect. Ulamaa should neither encourage nor discourage marrying more than one. Individual advice for a single person is understandable but generally it cannot be encouraged or discouraged as the Qur'aan has already given the advice clearly. And the Qur'aan neither gives permissibility and advice but not encouragement or discouragement (that it's better, more rewarding or worse).
Also to discourage something which might actually be a better option because "it might cause problems" would ultimately lead to discouraging all marriages entirely because which marriage comes problem free? Even when husband and wife are too perfect and problem free, there's tension from other family members for tiny little minute things from Shaytaan. So " due to reasons such as problems occuring in the future between the wives and the children from each wife etc" is also not correct. This one sentence has merely showed a flaw in the permissibility of an act that's not just permissible but practiced by the prophet and Sahaabah.
in the same way, what is wrong with pointing out the problems of marrying within cousins?
Why? Why not use the same energy to point problems in love marriages? Or marrying non-relatives? Or marrying other races? Or marrying someone older? Or marrying someone much much younger? The problem is all marriages are equally the same and have an equal chance of breaking apart. The cause of break ups are the individuals and those who cause the break up.
What can be pointed out is when families take marrying cousins too far. I know of familes who almost break ties with the daughters if they were to marry outside the family. This action can be pointed out. There are families who mentally drain the daughters into marrying a relative. This can be pointed out.
And finally, [quote]no one is saying multiple wives are haram... but it might not be the best option for all.
no one is saying marrying cousins is haram... but it might not be the best option for all.