"You say that as if it's a bad thing, or that I'm alone in my ambition. Your precious Potter is no better, though because he's 'good' he's given a pass for autocratic behavior. I won't lie and say that I wouldn't take advantage of an opportunity that arises that would bring power back to the Malfoy name, but you can trust that overall I want what's best for our society, and our family, and I'm not unaware of what that entails." It was the complete truth, so he had no trouble meeting Draco's eyes.
"However, I can say that I have no immediate desire to take over anything, or step on the little people to get power back. I will do what I can to rebuild our society in this new world, and that means accepting that the time for pureblood supremacy is over with. It has to be wizards first now. I've accepted it." And in two or three generations, the purebloods would rise back up, but he didn't need to mention that now.
He wasn't sure what else he could say to mend the divide between himself and Draco. "I am deeply sorry that my actions so negatively affected you. I didn't want you to get involved with the Dark Lord, but it seems I was unable to stop him from using you to punish me. I wish I had done a better job of protecting you from him." That had been his main priority when Draco was young, keeping him safe, and that hadn't changed now that Draco was an adult. Not in any way that mattered.