Having had both types of relationship. This is such backwards thinking, with most poly relationships you will have to make severe sacrifices to the time spent with most of your partners, and often end up with more non romantic relationships. Breakups are more complicated. Not to mention how much more communication it requires to keep together. Calling that anything but a major compromise is just lying. I am not saying any type of relationship is more valid. But that they all come with different compromises which work better for different kinds of people. Just because it works better for you doesn’t mean it does for everyone.