In ballet why are there never any Indian or African dancers ?

It's really just a stereotype, when people think of a 'ballerina' they think tall, pale, and pink tutus/pointe shoes. But in reality there are plenty of dancers from all ethnicities.

Because it's all about white privilege!

They don’t audition or they just aren’t good enough to make principal

It's really silly to use the word "never". Of course there are Indian and African ballet dancers, and Chinese and Japanese too. And as for Cuban, I can't begin to count them.

Yes, there are far FEWER Indian or African ballet dancers than white/European ones, because ballet developed in Europe and the tradition of learning ballet didn't spread beyond Europe and the USA until relatively recently.But a few minutes spent googling will show you clearly that more and more coloured dancers are coming up the ranks all the time.

PS It occurs to me you might mean Native Indian rather than Indians from the sub-continent. Just google Maria Tallchief.

One of the most renown ballet dancers in the world is Misty Copeland who is a dancer of African American descent who is a principal dancer with American Ballet Theatre. There are also many others too. Regarding dancers from India there are a few up and coming dancers who will shortly be in professional companies too. The issue in India is lack of exposure and training . Dancers need to leave India to get the right training. India has a rich tradition of their own classical dance. 

First of all India and Africa have a dance form similar to what European countries and derivatives call ballet.

Secondly there are ballet companies that are almost entirely either African or Indian who market themselves as Ballet Companies.

Thirdly there are people of all nationalities who perform ballet on a regular basis.

So I would have to say that your question stems from a lack of experience or lack of exposure to a broader spectrum of the art.

WRONG. Just because YOU aren't aware of any doesn't mean they don't exist. FAIL. 

There are.  This is a pic of The Royal Ballet, London.

There are            

Because if they did the splits, they would suction cup to the floor.