Why does Mr Yunioshi upset you?
You can't judge people from 50 years ago by the same standards we hold people to today. You can't say "It was 1961 they should've known better", well they more than likely did, but the stereotypical Asian character was just funny for audiences at the time when Vietnam was still going on and public opinion probably wasn't very high. And none of you can say that if you were alive then with only the resources available to you then while growing up you wouldn't think it's every bit as acceptable as they did. Like some other dude on this board said, there are far more outrageous things in this movie than the fact that they negatively portrayed an Asian character, like how she got married, seemingly of her own free will as we are given no reason to believe he forced her into it, the fact that she fell in love with a man that looked like her mentally disabled brother and always called him by her brother's name, and the fact that she's a complete gold digger and prostitute that helped run a drug cartel as a working correspondent between a mob boss and his people.
Communism was just a red herring!