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.
Totally agree with you that one should always choose good and strong coins for investment, because not all coins can survive in the market for long. There are currently a large number of Altcoins in the crypto currency market. Not all crypto currencies can be trusted and investing in any project without research and information can lead to losses.
The coins you mentioned which were very strong projects at the time could crash so a lot of caution is needed here. This also proves that no matter how good and strong the project is, one should not always invest all their capital in one project. always divide your capital into different good projects so that in case if one of the projects fails, the rest of the capital is safe.However, great care is needed when choosing altcoins.
If one will seriously invest in alt projects, one should diligently assess the coin itself.
You will hear a lot of suggestions, fud and all, but at the end of the day, it is you who can evaluate if the project is worth looking at or not.
Many alts come and go, and so it is hard to determine the lifespan of such project, you can only see if its use case will give them longer lifespan or not.
Being here for years will give you idea if the dev behind the project is just for quick money or they have plans of developing the coin into a useful one.