No, you can't say like that. Because there are still good ICOs. As well there are a lot of scams in the crypto field. But we can't tell, every ICO is a scam. We should read out the all of Website, Whitepaper, ANN Thread and telegram chat before involving any ICO project. So this is the way to prevent the joining of scam projects.
Not all ICOs scam because many ICOs profitable when landed on market. With rising people interest on crypto market, many peoples create fake project for their own benefits. We should keep research first before join in some ICOs