Murakami is FINE ART, but thwe anime crowd HATE what he does, because he brings to the forefront WHAT THE DONT WANT TO ACCEPT
he represents Otaku as a discriminated class, but the thing is that REAL Otaku don't think like that, they think that knowing HOW MANY SCREWS WOULD BE USED IN A REAL WORLD GUNDAM is the coolest thing ever, so they tend not to aknowledge him. So he is representing a group of people of which he belongs in a context which they refuse to aknowledge exists.
He is percieved as cool, as the FINE ART market is ridiculously western biased, and so what he does is percieved as EXOTIC regardless of what it is.
the thing is, that what he does is genuinely interesting and UNIQUE AS FINE ART, But because it's KAWAIIIIIII^_^_^_^_^_^, western collectors tend to purchase it regardless of what it actually is about. Which is often the discrimination of nerds.
HOWEVER
his work has a tendancy to be seen as critics as IRONIC and POSTMODERN and criticisng Japan's reliance on the Kawaii and Post-Disney iconography as a cultural idwentity, amd so often gets lumped in with Pop Art like Andy Warhol, Kieth Haring or Pruitt Early(a duo), despite the fact that it has nothing to do with their post-modern critiques. In Japan, Anime and otaku are seen as pretty low down, and it is only the post-post-modern hipsters or the Politicaly Correct psuedo-liberal critics who tend to see it in the light of OMG HE IS CELEBRATING JAPAN NEW CULTURE¬!!!!111 whicj ios plainly absurd. Especially in the context of contemporary japanese society where aime/manga is a highly disputed subject due the the sexual themes and the government's backstep into the 1800's in many aspects (especially the introduction of a 'Nationalism' class to school)
So, yeah it's acceptable to like Murakami, but only on the grounds that you don't have a clue what he's doing.
Basically, FINE ART is the most pretentious field of study in the world and anybody who studies it is bonkers, because it's so fucking ridiculous. You have to read like 500 books or interviews or whatever JUST TO FIND OUT WHY SOME GUY PUT A PENIS IN ONE OF HIS PICTUREs.