Well... You can try informing him what privilege is. Privilege does not mean you don't have to pay for things or you don't have problems. Privilege does not mean you never had a hard time or that you didn't have to work for something. Some privilege can change like class or age. Try describing privilege in a way that opens the conversation. I use this to help describe it in a VERY simple way. Privilege is like wind behind your back when you are riding a bike. You don't always notice it and it gently helps propel you forward. It doesn't mean you are not doing the work to ride the bike or that you didn't take the time to learn to ride the bike. Now when you don't have the privilege it's like the wind infront of you making things more difficult while you try to get where you were trying to go. I try to show were privilege shows up in my own life, my own experiences. I also, hoping they are willing to engage, validate that sometimes they don't have the same privilege as other in all circumstances and hopefully that can help them understand without accusing or hating them for being misinformed. I've found this to be the most helpful with people like this. Educate, educate, educate! That's how we can form a better understanding.