Cryptocurrencies to me is merely investment items having zero utilities. Investment in cryptocurrencies is similar to betting on horse race, you earn if your horse leads. Bitcoin is real king and so far has created its existence in financial system.
Altcoins on the other hand hardly accepted by merchants and consider if merchant accept altcoins, he only accepts if alts are convertible in Bitcoin.
Right now it seems to be true. there is a buble on altcoins and bitcoin lost in value beacause of etf rejection panic. However, it quickly came back to levels of 1200$ and is in a good condition. But the bubble on altcoins doesnt want to pop. There are cryptos that are still on high price levels and dont seem to fall
Perhaps among the alternative coins, a real rival bitcoin will soon appear. But I still do not have strong confidence in alternative coins. I choose bitcoin