As described in the link; it is apparently inflammatory to accuse Israel of perpetuating racism as claimed by Ahmadinejad.
Now, lets THINK about htis clearly. Take a step back and look at the big picture. Why did delegates stage this walk-out, when here is what was spoken through a translator:
"And they sent migrants from Europe, the United States and mother parts of the world in order to establish a totally racist government in the occupied Palestine,"
OK, are these comments valid? True or False you cant go and throw them out the window because one FEELS they are anti-semetic. Personally, all that ahmadinejad said was true and on par with the historical and current situation in Israel there is no question whatsoever.
But this is the callous nature of Israeli/Zionist propaganda. If someone points a finger at you, just point a big stick at them, bait and switch.
This is only an example of what has been going on for a century, ever heard on the ADL?, which should be called the J-ADL. Their sole mandate: to counter any criticism of Zionist Israel by branding the critic as antisemetic. You dont like the bombing of palestinian civillians? ANTISEMITE. You dont like the wall? antisemite! radical! You dont agree with starving a nation of food, water and basic needs? antisemite! Oh you think we are racist to muslims and gentiles alike! "... am not, you are! In Fact you're an antisemite", that's worse than being a racist these days, of course.