Consensus so far: No, do not merge them like that, that would be Bad.
Solutions suggested so far: A category for everything and everything in its category.
Addendum, upon understanding what you're actually talking about: Do not, not, not, use extremely culturally specific terms as generic format terms. Format terms should be as neutral and descriptive as possible (though, judging by some discussion above, this will be a bit difficult too); Animation and Graphic Stories perhaps? (Graphic Novel is more familiar to some parts of the fanbase but really doesn't describe the long-running serials very well). And, seriously, do not use an imperialistic culture's word for graphic stories as some bizarre kind of coverture to encompass the graphic stories of cultures they have been imperialistic toward. Just... bad, yes? This applies both to using comics to cover manga and using manga to cover manhwa.
Conclusion so far: Format terms = as un-loaded and descriptive as possible, understanding this will be difficult. Anime and comics and manhwa and and historietas all = source type terms not format terms. It will always be a bit messy; this is life.
no subject
Consensus so far: No, do not merge them like that, that would be Bad.
Solutions suggested so far: A category for everything and everything in its category.
Addendum, upon understanding what you're actually talking about: Do not, not, not, use extremely culturally specific terms as generic format terms. Format terms should be as neutral and descriptive as possible (though, judging by some discussion above, this will be a bit difficult too); Animation and Graphic Stories perhaps? (Graphic Novel is more familiar to some parts of the fanbase but really doesn't describe the long-running serials very well). And, seriously, do not use an imperialistic culture's word for graphic stories as some bizarre kind of coverture to encompass the graphic stories of cultures they have been imperialistic toward. Just... bad, yes? This applies both to using comics to cover manga and using manga to cover manhwa.
Conclusion so far: Format terms = as un-loaded and descriptive as possible, understanding this will be difficult. Anime and comics and manhwa and and historietas all = source type terms not format terms. It will always be a bit messy; this is life.