Lol, well this is bitcointalk, what did you expect from the quality haha. And obviously they are not competition to bitcoin, they never were, and they never could be anyway. I wouldn't say shitcoin pile to where they are, SOL could be a bit shitty, I sold mine because I feel like it is way too centralized with how they are controlling the blockchain and I do not like that, even BNB is more centralized and doesn't do those things which is a proof that SOL is not only centralized by authoritarian as well.
But, people like that would defend it no matter what happens and because of that reason I believe that maybe they can have a future, not a deserved one but a hyped one, kind of like doge.
Solana is extremely centralized, so I wouldn't consider it as a serious long-term investment. Most people don't care about this, so they will still pour money into the cryptocurrency as long as they're able to make profit in the shortest time possible. Knowing that crypto is mostly driven by hype, I'd say there is a future for Solana. How far will it go in terms of price, will greatly depend on the rules of supply and demand.
I hope the project's developers do the right thing by prioritizing decentralization in order to make Solana stand the test of time. Everything is open sourced these days so if Solana fails, another project based on the same technology will take over the world by storm. As long as Bitcoin remains as the "King of Crypto", nothing else matters. Just my opinion
Altcoins are mainly centralized because in order to get a fast network and have cheaper transaction fees than the rest of their competitors, they have to make trade-offs. All altcoins are just tools for us to make profit over time, they will be replaced by better altcoins. Only bitcoin is the most valuable long-term holding.
About Sol, I still believe that in the coming years it will grow and have a definite place in crypto what it has shown in 2021 is really impressive and this year Luna is what I think it will be like Sol last year.