Looked for threads about bitcoin gold fork but did not find what I was after.

Let’s say i have a small amount, 1000 in dollar value at coinbase, the same on my trezor and the same at my blockchaininfo wallet.  

Now we have a bitcoingold fork and suposidly I have some amount of coin in that block chain.   I don’t want them.  What is the mechanical process to sell them off?  Is the same key structure in place.   Are my bitcoin private keys the same.

I don’t like where all this fork stuff is taking us.  All I want is bitcoin and 1 process to manage them.

If there are threads which cover this pointers to them would be helpful.

Thanks.