Ok, maybe schools should teach kids how to file taxes but I'm confused because you implied in the beginning of your comment that you think education is important and then implied that schools don't teach anything useful so I don't know how to respond.
I feel bad for all the people who only get a piece of paper and a handshake out of school. And BTW you don't have to go to college and pay thousands for a post secondary education. There is something called trade school that is a fraction of the cost and only about 2 years.
Did you insult them or compliment them. And they may have been rude, but they're right. There are better ways to handle it then sending a rude meme right back at him.