Guys with double standards

Men have to compete with one another to get picked for sex. They have to display that they have the best genes or the most value. Women have to compete too, but only for the BEST male. They can have sex anytime they choose, just not with the best choice. But if they were to lower their standards as men have to do, they would get to pick from a long line of men. "Getting laid" is not something that can happen every day for the common Joe. He has to navigate the maze of a woman delicately in social situations to convince her he's the best pick. If a woman goes to a bar, club, or casual encounters looking for sex, and only wants sex, she will have zero problems getting it. Therefore, over time, women have gained a negative connotation, because they are not "beating anyone" or doing anything remotely impressive, they are simply manipulating basic human biology for sexual gratification. And thus, poof, the term "slut" was manifested.

Your point is right about men, but wrong about women. It's not just that it is easier to get laid as a woman which causes the negative connotations, but that it is in evolutionary terms undesirable for a woman to be promiscuous because of the limited offspring she can produce, and the risk of cuckoldry she poses to men.

Of course, will get flamed for this, but that's just how it is.

Your point is right about men, but wrong about women. It's not just that it is easier to get laid as a woman which causes the negative connotations, but that it is in evolutionary terms undesirable for a woman to be promiscuous because of the limited offspring she can produce, and the risk of cuckoldry she poses to men.

Of course, will get flamed for this, but that's just how it is.

Even if it was evolutionary the case, doesn't mean that it's should be acceptable in modern human culture. Besides how does having sex with lots of guys make them more infertile or breedable?

A woman having sex with lots of men in evolutionary terms is 'bad' not only because of the cuckoldry risk to men (hence fewer men would be willing to invest their time/resources/money in woman with a reputation for sleeping around out of fear that she won't produce his kids) but also, like I said, because of the limited number of offspring women can produce.

Because women can afford to be choosy and because they can only produce a limited number of offspring, they want the best genes they can possibly get (whereas technically a man could have thousands of kids by moving from woman to woman every ten minutes, if he is the king of getting laid). Thus a woman having sex with any old random guy is seen as bad reproductive practice as far as genes are concerned.