It’s just sad. Multiple waifus captured and he ruined them! I seriously hope that either 1) at least the elf girl finds him and she and nephew change his idiotic views, or 2) Oji-san realizes his mistakes and goes and gets all the waifus himself.
I'm going to give this manga only another 40-80 chapters before I give up on it. The nephew really needs to speak up and explain how women work, and then destroy his uncle by bringing up the 32x and plugging Doom into Sonic & Knuckles.
Thinking tricks in an old video game would work in real life, or in an isekai, is pretty much summarizes what's wrong with this uncle without using that overused word.
It's strangely addictive and fun, just seeing how this socially deficient uncle fucks stuff up in ridiculous ways and seeing how people navigate his awkwardness. Made all the better with those sweet moments splashed in there.