It's like saying:
"I would like a car"
Everyone would think you mean some form of automobile for personal transport on a road and then going:
"NOOOO I mean a train car, a vessel for transporting passengers or goods on a rail system that is powered by a train, gosh it's SO obvious and very clear I meant this very specific definition and nothing else"
I moved from a narrow generalization to a broader one. You did the opposite - broad to narrow.
Hold on, now we've gone from "there must be more true friend companions" to who fits in the "waifu" category or not? In that case, there are many many harem games with fantasy settings out there where the writing might be more to your liking.
You have a very wrong understanding of what "waifu" means. A waifu is a woman who loves you unconditionally - just for who you are. She can be any type of woman, not just a caricatured loli with boobs the size of a bus. Karlach for example is a classic waifu.
