Generally, most people sees Bitcoin as being of high risk , meanwhile, others tend to disagree with the fact of being risky.
I'm one of those who believe Bitcoin isn't risky when compared to altcoins. Those who think otherwise haven't deeply studied how Bitcoin works. For me, the only risk there would be making wrong entry or exit predictions while buying it. If we're referring to market dump as the risk Bitcoin can be thrown into or exposed to, then we should know that Bitcoin is like a cat with nine lives. It never dies. It has the ability of rising from its ashes. We've seen it rise from serious dump on several occasions during the bear seasons after each ATHs in the past.
However, for me, I believe Bitcoin is really risky but the weight of risk depends on how much you are capable enough to manage its risk. But I have to agree with you that if bitcoin is risky, altcoins are even riskier as they are. With their pump and dump scheme, at the end of the day what we see is that most of them have turned into dead coins except for those who have established their credibility on the market.