Holding useless coins is meaningless, you chooses bad projects and now you are putting blame on all altcoins, next time make sure you choose better altcoins in the market, do strong research and diversify your money
Only few projects are legit with a vision for the future. Actually, it's probably only a handful of them. ICOs have been scammy since the beginning when there's been an insane explosion of shitcoins with fairytale whitepapers that were sold through ICOs.
Choosing which coins are fine and which aren't is an easy job if you study them. The thing is, they'll never get past BTC so most alts will mostly only pump & dump during stable Bitcoin timeframes.