In this case, yes he was, but not every student who wears political symbols knows what they mean.
Especially considering the state of Public Education as it is today.
A couple of years ago, I went on a weekend thing with my wife, her sister and her sisters son.
Nice kid, art major, but like many kids, kind of clueless about certain things. We were going out to eat one night, and he comes down wearing a Che shirt.
We had the following conversation:
ME: Do you know who that guy is on your shirt?
NEPHEW: Ummm...hes a revolutionary guy?
ME: Yeah. Do you know what kind of revolutionary guy?
NEPHEW: Umm...no.
ME: It was his job to have people who disagreed with Castro dragged out of their homes in the middle of the night and murdered in front of their families, and then the families were sometimes murdered. This guy was the one who did it.
NEPHEW: Um...I just kind of like the shirt.
ME: Ah.
My wife didnt give me the evil eye because she understood my point, but I am the mean conservative in my wifes family. My mother-in-law used to goad me once in a while (she is EXTREMELY liberal) but when I made it known that I would express my views regardless of the company, she stopped.