Staga, there is racism in every society.
Apartheid however is a special case. Apartheid had a prohibition of mixed marriage. The Immorality act made it a criminal offense to have mixed race sex. The Reservation of Separate Amenities act was like the Jim Crow laws in the US south where blacks had to drink from different fountains than whites. The Bantu Act suppressed the level of education blacks could obtain.
20% of the vote in Israel is Arab/Muslim. They have representation in the Kinneset, and by your admission, their political power grows with their population. Blacks essentially could not vote under Apartheid, no matter where they lived, as their parties were banned. Arabs have citizenship, they can eat in a restaurant next to Jews, share public transportation, go to college, etc.