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.