Votality catches everyone off guard and the ups and downs of the crypto market will be caused by many factors. If you are not prepared with a good strategy, a decline in value will occur. Many shitcoins will indeed turn into zero and worthless again, that's because the shitcoin is only made to benefit the developer, not for long-term project goals. There are some new coins that still survive with a strong community and even during bearish times they survive.
But it's not easy to find such coins. Most shitcoins will end up abandoned. better invest in altcoins that are trusted.
Think its worth noting that even altcoins aren't safe in bull mrkts. Just the way every upcoming dev was looking for ways to launch any scammy coin with "PEPE" attached to its name, folks will also be out to make huge cashouts in similar fashion during bullish periods. Any project could be a scam tbh, you'd need a substantial amount of research and some luck before investing everytime.