It was established in the animated series episode Yesteryear that Spock was bullied by his classmates when he was a child. This was brought up again in Star Trek 2009. If you consider these 2 sources canon. I believe it was mentioned in the original series episode Journey to Babel by Spock's mother.
Now does it seem logical for a race that is supposed to embrace infinite diversity in infinite combinations (IDIC) to denigrate someone for being different? At least in the 2009 movie, it wasn't just the children who were doing it. The old men on the committee for the Vulcan Science Academy just had to bring up the fact that they thought his human mother was a disadvantage to him.
Now does it seem logical for a race that is supposed to embrace infinite diversity in infinite combinations (IDIC) to denigrate someone for being different? At least in the 2009 movie, it wasn't just the children who were doing it. The old men on the committee for the Vulcan Science Academy just had to bring up the fact that they thought his human mother was a disadvantage to him.