Its because most of altcoins (hundreds of them) are really exactly filled with uncertainties. Whenever I look through websites of new altcoins I can find dozens of red flags. Coin distribution maths are generally very bad and sometimes look intentional so developers can get rich over investors. Sometimes whitepaper are very messy and amateurish. Only top 10-20 maybe 30 altcoins feel safe to invest.
yes, you are right, because many altcoin that have sprung up at this time just want to steal investors money (although not all of them), but we must still be careful if we want to invest in altcoin, because if we choose the wrong altcoin then of course our money will be lost, but if we choose the right altcoin, then of course our money will increase very much (get a lot of profit).
Just look at altcoin's name itself and what it suggests, it means that these coins under the name altcoin are just an alternative of bitcoin.
That alone we can differentiate why investors are highly skeptical about altcoins compared to bitcoin. Of course, volatility is always there but the certainty that the selected coins will prosper is much lower in this bracket and as you guys have said, many coins nowadays that has almost no utility at all are existing in the market which again bring uncertainty to the investors. And that brings us back to the basic, we needed to have a thorough research and study if we're indeed looking forward in investing altcoins.
It's a bit unfair to say that the term 'altcoin' means that all coins are inferior to BTC. I mean who even invented the phrase? Why can't someone re-label them 'superiorcoins'? Does that automatically make BTC worse?