Unnecessary 4 Marriage Concept!

So the concept of 4 marriage is a really strange concept because on one hand we say woman have more sexual desires than man and yet it's the man with 4 woman options. In my opinion it was something that the Arab culture had and Islam opted it according to that culture, so for the subcontinent or any other region it's a very foreign concept, nor just 4 marriage is unnecessary it's also psychology very straining on the woman. Imagine sharing your wife with 4 males same goes for women but but but, what can we say...