I undertand. We(in general) both may not be able to convince each other.
Yes, a man can have a maximum of four wives. There are strict rules if one man marry more than one wife.
I will give you a simple answer for that. Milk four types of animals, say goat, cow, camel and donkey. Pour them in a pot/bucket/flask and mix them. Can you now identify which is from which? It is the same with having babies. If you have four husbands, it won't be easy to who is child's father? But this is not the case for a man.
What?
How is that related to inequality in Islam where a man is allowed to have four wives at one time and woman are not?
OMG so you meant if a women had four husband it won't be easy to tell who was the father of the child?? That's your argument for the in-equality?? This is absurd.
(Oh and btw there is a thing called DNA test for that.)