Shitcoins will be left as piles of dung in the years to come. As bitcoin becomes more accepted and legalized in the world, it also means that some wild coins that go against the direction of mainstream will die out. That should raise a question mark of doubt regarding the eradication of at least 60% of coins out there. I think it should be happening soon in 2022
The demise of Shitcoin is a good thing and will not be bad for cryptocurrencies because some people in cryptocurrency also expect this to happen, but in reality it will always be because the scammers who are still alive in the crypto space will always create new shitcoins.