Do we have any confidence level in altcoin?
I dont think so and to me, the altcoin is nothing but a gamble and should be treated as such, and one shouldn't have a long-term perspective on altcoin and the highest you can do with altcoin is to use it for speculations, I have not paid any close attention to altcoin market lately because I have an indept know about their potential and risk associated with altcoins.
For a long while, I haven't seen any altcoin that has shown any consistency in it growth just as we ve seen with bitcoin, and because pf the centralized characteristic, the altcoin has become so uncertain because many of them end up pulling an exit on the investors or having their liquidity remove by it, providers.
Yes, we do have some confidence in altcoins as well, since there are some amazing altcoins out there that you can even buy and hold for the long term, like ETH, which is the second-best cryptocurrency in the world right now after Bitcoin. I will have a lot of confidence if I buy and hold some ETH alongside Bitcoin for the upcoming bull run.
I know that most altcoins that are released these days are not worth the time and the investment made on them, except for a few which might turn out to be good and provide you some profits for the short term, but there are old altcoins that can be considered good for diversification.