Profit in altcoin is only possible in short-run, for the long run Bitcoin is the only right asset to invest.
Many investors don't research to find the coin, but they only follow what other people suggest in social media. That makes them lose their bitcoin by investing in altcoin, and that make them hold the altcoin for a long time or cut loss the altcoin right away when the price is down. Maybe the altcoin is for the short term investing, and bitcoin will be the long term investing. But still, they need to search for the coin to invest in an altcoin.