I mean, I kind of get why? Chunks of the fandom have this very strong perception of the galra as Hostile And Dangerous and they project that onto that side of Keith’s heritage. You see it in a lot of really body-horrific “transformation” concepts of like. Keith being slowly physically converted, often under torture, or the process itself is torture- or the idea of “instincts” that are invasive and mind-hijacking. That Keith’s own heritage is an invasion from within or a malicious, harmful influence he has to fight off. (That’s not behind all of it, but it’s a sometimes-unintended impression it gives: that Keith’s heritage is here to hurt him.)
Regarding the last bit of that praise kink thing, does Len ever say it in public or in front of other people, just bc he knows what it does to Barry and wants to mess with him?