The false premise idea is that you are blaming women for what is your issue. One woman can be enough. Indeed, for many men, there is one woman who is enough to last them a life time.
To answer your question, you have to look inside yourself. Some of the women here suggest it is an issue of maturity. I think there’s no way they can know that. It’s a knee-jerk reaction on their part, although I will readily admit that there are plenty of men that women consider immature out there.
But if you want to have one woman, and you find yourself unable to do it, don’t blame the women. Rather, ask yourself what you are looking for, and why you have been unable to create it.
Reltationships are not jewels unearthed in a mine. They are made by human kind. You must put all your effort into making a good relationship that lasts. If it does not last, that is not your partner’s fault. It is yours. But blame is not really the issue. The issue is making a relationship is something you do, not something that falls in your lap.