Absolutely not, not all of the altcoins can be survived.
If you just put your money into any alts i think is a bad idea.
If we look recently there so many big coins fall, like FTX and LUNA.
So pick your alts wisely.
I agree with you, indeed in my opinion altcoin are investments that have a high risk with high profits as well, therefore if you want to invest in altcoin, then you must be prepared for the risks and choosing the right altcoin, but if you really want to be safe to investing in cryptocurrency, then it's better to invest in Bitcoin, because Bitcoin is the best investment for the long term, so I'm sure you will get profit from investing in Bitcoin, because the price of Bitcoin will definitely continue to make a new ATH price every bullrun.
The problem is that when talking about altcoins nothing can really be said to be right especially with some of the current thinking when talking about altcoins then indeed new projects = shitcoins with unreasonable pumps. Even though not all are like that but looking at the current conditions and reflecting on this year alone the fact is that on average most are like that so there is no word that can really be said to be an investment because they are just looking for every point of gap for utilization with the shitcoin pump in the hope of instant fast profits.