And then I see the girls above 6' go for the shorter guys. It all evens out that way.
This is so incorrect that it isn't even funny. Let me tell you a story. I'm 5'10". There was a period in my life where I was playing sand volleyball, both pickup games and in organized co-ed leagues. Most women who are playing volleyball as adults played volleyball in either high school or college. Who tends to play volleyball in either high school or college? Taller women, typically 5'7" and up. 5'7" and 5'8" women are considered shorter for volleyball. The best volleyball playing women are 5'8"-6'3". While ex-high school volleyball players can be a little shorter (maybe 5'8"), it's almost impossible to see an ex-college volleyball player under 5'10". Women 5'7" and under are not all that inclined to randomly play volleyball as adults. While I might have a chance with the 5'8"-5'10" women at volleyball, the 5'11"+ women are very unlikely to consider me worthy of their time. While I enjoy volleyball, there are other activities I enjoy more. Volleyball isn't my best use of time for attracting-seducing. The typical 5'11"-6'3" woman playing volleyball has essentially no interest in a man who is shorter than they are, unless he's extremely wealthy. Even being the same height as 5'11" or 6'0" volleyball player isn't that exciting to them, but may be passable.
For a 6'0"+ guy with a solid physique and decent volleyball skills, I'd recommend volleyball for pickup. I'd recommend sand over indoor. However, for the 6'0"+ guy with a good physique, I don't think that sand volleyball is any more efficient than swipe apps or randoming approaching at bars. That type of guy is going to have success in all formats. It's a matter of how much screen time he wants to put in on his smartphone vs. how much real life approaching he wants to do. I think it would be more fun for a 6'0"+ guy with sand volleyball skill to pick up women through volleyball than to sit on Tinder/Bumble/Hinge and swipe. It'd be a better use of time for that guy to play volleyball in terms of getting longer term relationships. That'd be the use case where I'd recommend volleyball over the swipe apps. It's a realistic scenario for a 6'2" guy to a get a 5'10"-6'0" volleyball playing girlfriend and that scenario has a better chance of lasting longer than flings with Tinderellas, most of whom are 5'6" and under.
5'10-5'11 is the perfect male height imo
Your opinion only. It's fairly common behavior on the swipe apps for women to filter out men below 6'0" from their swipe cards so they won't see them while swiping. Additionally, a lot of women won't swipe right on a man under 6'0" who swipes right on them. A lot of 5'10"-5'11" guys lie about their height on apps in order to work around this. There are pros and cons to doing this. I think there are more cons with it as it can hurt the foundation of a longer term relationship. However, it might be acceptable in a shorter term/casual arrangement.
At 5'10", you're tall enough that you won't get written off for height in most real life circumstances, but it's not a height that will excite a lot of women. 5'11" is better. 6'0"+ is the culturally dictated desirable standard for women in the United States and what mostly every White woman with a bachelor's degree or higher demands when she uses a swipe app.