I'm thinking of selling Yeezys my friend stood in line for 40 minutes to buy
Why would you try to sell them when they are a gift?
That's the only mean thing I can do to him
It's wrong to sell shoes that your friend waited patiently in line to buy. Doing this will make you appear to be ungrateful. You should return them to your friend if you are no longer interested in having them.
My friend is a fan of Kanye, he shouldn't have given me the shoes to begin with.
It would be best to return them to your friend and let him know that although you are thankful for the shoes, you have no need for them.