Does unemployment really count as taxable incom?

I don't know whether to claim my unemployment or not. According to irs.gov unemployment is not earned income, so if you only get credit for earned income why would you want to claim it? I have recieved my 1099-G, according to answers on a similar question it is taxable but absolutely zero taxes were withheld from my unemployment so I don't think I'm going to claim it. It only harms my refund if I do. So why should I?