Why i miss the old fashioned girls we once had?

No offense but you appear to have some sort of... Learning disablity? Not to mention poor attitude, both of which is more likely what makes it hard for you to connect...

You seem bitter. Good women still exists, you know.

You get back what you put in bruh. Change your shitty tune and the world will change with it.

I doubt the problem is with the women.
If your post is any indication of your ability to carry on an intelligent conversation, then that could be a big part of why you can't keep the interest of a 'good' woman.
You've got to have something to offer a 'good' woman, other than your good looks, you know.

1) What's the definition of "old-fashioned"?
2) Just because we choose to not follow the "old traditional route" does not mean that there's something wrong with us, if that's what you're implying.
3) You can still find many women who don't surround themselves by a bunch of men. There are still many monogamous wo/men around. Where are you looking? You could be looking in the wrong places.
4) Good is subjective and since I don't know you, I don't know if I can attribute that adjective to you yet.

It's called "The Cock Carousel". It's what women do during their prime. They're surrounding themselves by a whole plethora of men, each one of them serving a different purpose. One of them serves as emotional support, another one as financial support, another as sexual satisfaction and others who are just there as a backup plan in case some of the earlier mentioned prove to be less effective and resourceful.
It's just what females are genetically programed to do. They exploit every resource they have at their disposal in order to maintain a comfortable life for themselves and ensure a future to their potential offspring.
They eventually settle for a more stable guy who can provide for them financially after their biological clock stops ticking. It's their hypergamous nature that drives them to be like that.
If you plan on finding a woman that will reciprocate your feelings and will love you the same way you love her, you can forget about it. When a woman is looking for a man, she prioritizes the utility value of a man, before perceiving him as a human being with feelings and needs.
This is the harsh truth buddy. And before you're throwing yourself in the dating game, you have to accept and be aware of the female nature. If you're confident enough and you're willing to compromise and accept the fact that you're most likely gonna be used as a disposable utility, while as a small reward they're gonna make you feel like you serve a purpose in life, as a man, to cater to their female needs, than you're gonna be all good.

Just don't expect much from it.

And there's no such thing as an "old fashioned girl". Women have always be the same. It's just that now they have more freedom to be themselves and aren't afraid to face judgement and social scrutiny.

"Old fashioned" is just another way of saying "bound down and restricted by society's rules and expectations". In the past, it was often not acceptable for girls and women to be promiscuous and express themselves sexually like many do now, but it was also less acceptable for women to be in the workforce or drive a car or have other freedoms that women enjoy today. The good comes with the bad, like it or not. Don't be fooled however. You're making a mistake if you really believe that girls and women in the "old fashioned" days didn't think about sex, drugs, alcohol, etc. They thought about them just as much as women do today, but they were discouraged from showing that side of themselves (usually by their own family), often because it wasn't "proper" or "ladylike", especially for finding a good husband. You should realize that people as individuals don't change, but society does, and society influences how people behave.

I find them all aesthetically unpleasant. But they are not really for looking at...

It's because as men we've been programmed that women are to be "protected" by us. Now we compete with them.

You haven't looked hard enough. It takes alot of dedication to find The One in life.