I am not so sure that people are against marriage, is the right way to say it. It is more that many do not like, much about marriage or about divorce. From many men's perspective, marriage is like a very bad stock investment. They gain little if anything, and are more likely to loose all they invested. And then they find out that their broker was actively sabotaging them or was ripping them off.
Many will never bother to actually deal with the following. As I have said many times, be honest and think about this. What is it that most women today, add to the life of a man, which he finds of so much value, use and worth to him, aside from sex? And at what cost to him? See, for the most part, women gain far more from marriage, than do men. From my perspective, women have far overvalued themselves and their worth. Now, how many women do you hear or see, say that they want the man to cook and clean and so on, as well as be financially secure and so on. Well, if I already do those things for myself, and have managed to make a decent living, why would I want to add someone who basically only serves one purpose to me, once you factor in, just what them being there will cost me? Add in, that at any given moment, she may elect to say forget it, that one thing that I do offer you, is now off limits to you as well. And there is not one thing you can legally do about it, and she knows it. Divorce her over not giving it up to you, and you will still pay her. And if she decide to leave, you may well end up loosing much of what you have. I understand that people hate when I write this. But where am I incorrect, in what I say? Women are the ones who seek a divorce, 70% of the time. Now please, do not delude yourself and say that they all are abused. And then consider just how biased divorce and family courts are, against men. It is all about punishing the man, and also draining him financially. Be factual and honest. If you were going to skydive and had a 70% chance of the chute not opening, would you skydive? How about once you crashed into the ground, if you survive, the land owner now gets to charge you some outrages amount, for the hole you put in their land, and may get to continue to charge you more over time? This is exactly how divorce, for so many men.
We are well past a point, that people in general and women in particular, need to finally be honest and admit, that there is much truth to this. So you see, it is not that many are against marriage, anymore than they are against investing. But they are smart enough, to realize when a stock is a bad investment.