Over 850 millions of people use alipay as means of payment mostly in china and i heard lots about wepay as well, i come to think of it that what if bitcoin was been used in their places instead? if alipay and wepay can get to where they are today then altcoins have all the chances of survival as well. Wepay and Alipay are just online payment solution, crypto can do better.
Real use cases plus real life working products, let these two be your main focus when picking altcoins to invest your money on, do not listen to those saying 'dump altcoins for bitcoin' when you are holding solid altcoins
This is not a problem if alipay survives then altcoin can also survive, indeed in another sense altcoin can be survives or any other currency that has the same concept can be survive, I think here on which side the adoption will run. Survive or not is determined by the adoption of the community, bitcoin can survive alone but because of rapid growth and a high enough value cause weaknesses in the transaction. Then the generation of stable coins, they can s end more transactions with a cheaper fee.
There is a reason why a certain coin could survive it is just because that coins serve for something special and has a place to stay in crypto.
Do we think that all altcoins could survive for this market competition? It surely not, cause not all of them are worthy to be trusted or a coin that serves good in the community. They are far from what Bitcoin does and to know also that most of them are worthless.
Bitcoin can go far alone even without altcoins support, it is only altcoins that can't go far without Bitcoin.