So if you consider "buddy breathing" a kiss, then it's okay with you that Fraser would let Ray Vecchio drown, because Fraser wouldn't kiss him? What about any of the other characters? Fraser won't give them mouth-to-mouth because he wasn't attracted to them? That would be OOC for Fraser. He'd do "buddy breathing" for anyone who needed it, but would be particularly desperate to save RayV or anyone else who's close to him.
F/K shippers are weird when they disregard canon Fraser and canon facts from the RayV seasons.