The city where Anderson was located was too small, and Boss Yan felt that there was nothing worth targeting there. He was not lacking in gold; that night's actions were purely for revenge and to vent.
Now that his anger had subsided, was there any need to pick on a specific industry until it was dead? After all, isn't America known as the most developed place in the world, with all industries leading globally?
It's good that they're leading; if they weren't, he wouldn't even know where to start! Since everything is leading, there are plenty of targets to choose from.
Let's start with clothing, food, shelter... how about transportation.
Isn't there a big Jeep in the cattle ranch? That's made in America, very durable, and quite convenient for hauling goods to the countryside. Since he's come to the place of origin, he might as well take a hundred or so back, so he can switch them out later.
