How many cryptocurrencies failed, dead?
How many Bitcoin forks are dead?
Then you will see more risk from altcoins (Bitcoin forks are altcoins too) and make your investment decisions more carefully and have more fear about altcoins, then avoid altcoins for your portfolio in long term.
Dead Coins: Over 50% of Cryptocurrencies Have Failed
How many Bitcoin forks are there?
Over 50% is huge turnover, people are always wanting to make a buck. Some people also have the knack for it, its harder to trade the shitcoins and make a profit, but people do it every day. You just have to know how to do it correctly, I for one do not unfortunately. I wish I knew how to do it tho, i'm still searching and researching how to achieve this correctly. There are over 100+ ways to skin a cat! The same applies here.