Is Israel an Apartheid state?

So I want to start off by saying that I had no clue that Macy Gray still had a career.  I remember her from a few years ago having a song that was a huge hit, and I can tell you honestly I never liked her music.  Perhaps that is why I had no clue she was still around.
Either way, she is scheduled to play in Israel (Tel-Aviv to be precise) and she asked her fans on Facebook whether she should perform in Israel since she heard it was an apartheid state and she wanted to hear from her fans.  Of course, most of her fans seem to be ignorant as to what apartheid is, and they mostly told her not to perform in Israel since "Israel discriminates and it is an apartheid state."
Let me explain something here... Apartheid was a system of legal racial segregation enforced by the National Party government of South Africa between 1948 and 1993.  What many claim to be apartheid in Israel is a security fence and border restrictions. 
Apartheid was put in place because according to the National Party, Blacks were not equal and deserved less rights if any.  The security fence in Israel is, well, a security fence.  It is in place, as are other restrictions to help maintain security in Israel.  This was the result of an onslaught of suicide bombers killing hundreds of innocent Israeli citizens.
In order to maintain a secure environment, secure enough for international performers such as Gray to perform in Israel, this fence was erected, security measures were put in place, and border restrictions must be maintained.
Not a single American smiled on September 11th, 2001.  It was an awful event that took the lives of too many innocent people and ruined families for years.  We don't even have to mention the emotional damage caused to thousands of people.  When The US decided to attack Afghanistan, for the most part, there was a very high approval rating.  When Palestinian suicide bombers are stopped at the Israeli border, it prevents people from being killed.  When Hezbullah launches rockets into civilian areas nobody says anything.  When the IDF attacks a known terrorist cell block in Gaza or Lebanon, the world condemns Israel.
It is not out of racism that these measures are in place, it is out of security and survival.  Apartheid was an African policy that was based solely on ignorance, racism and intolerance.
Hopefully some of Macy Gray's fans can open their eyes and see that NO, Israel is not an Apartheid state.