No the issue is you're putting incredibly high standards on to the men who wish to pursue polygamous marriage. In many of these countries the men who do have multiple spouses are providing for their children and wives with basic necessities to the best of their ability given the economic situation in which they have no control over.
My wife loves me and knows my situation if the woman gives up her right voluntarily and allows you to give her what you can afford who are you to say its haram. You seem jealous, I have a heart of gold full of love and would never neglect my wife
She can easily change her mind and that doesn't negate the fact that is the duty of a Muslim husband. Also, your children and any unborn kids do not forfeit those rights.