It's obvious to most people that Yuri is best girl, but it's still pretty crazy of the author to show such blatant favoritism.
Crazy that Sou's most passionate and loving sex is with the (corrected)lesbian.
Within an hour of meeting him they would both be drooling and have heart eyes thrn start to become interested in giving birth through "natural insemination."
Soon they would both be feeling bitterness and jealousy towards the other for monopolizing Sou's time and giving each other dirty looks...
A bad influence in that they shouldn't be into yuri, or a bad influence in that by making Sou fixate on yuri girls that he's guaranteed there won't be a single lesbian left in the school 😆
It's a world where men are more scarce, so I believe there is a stronger instinct to breed than usual for the women of this world, but I also think that it's partially just Sou himself. None of the girls show any interest in Suzuki who is an awkward and distant guy, but Sou is described as...
I've always thought it was funny that even though a lot of Yuri's character revolves around Miku we've never even seen the two interact on page before. Now we know that Miku doesn't even know who Yuri is!
Sou will probably try to introduce the two hoping that some lesbian chemistry will form...