I think that 95% of crypto coins and tokens won't survive and the reason is that a crypto coin in order to survive and get value it has to be accepted as a way of payment for purchase goods or services.
Very few coins will manage to do it at the end of the day and of course these coins will get enormous value.
The only thing you have to do is to find out which coins will enter the market of real currencies.
I absolutely agree with you. I think that most coins that have nothing but ideas written on paper will simply disappear from the market or will cost 1 satoshi. This is a bitter truth that must be accepted. There are many new projects that do not bring anything to the market, but they want to take their part. Few will succeed.