[from what I'm observing altcoins are just there to stop Bitcoin all this time. Back in 2018 Bitcoin's dominance fell as low as 35% and the chart speaks for itself.
This doesn't much hurt Bitcoin as a network, those that understand its value will get in and those who follow the hype of other projects could profit there or get burned, just like with ICOs back then.
The network won't have a problem, growth will have as all this money could have been invested in Bitcoin instead of blindly gambling them into ICOs. Three years after the ICO craze still no products and no utility by altcoins. There are a few that tried to create something unique but were doomed to fail as they were either not decentralized or secure as blockchains, or were just ERC20 tokens running on the Ethereum blockchain which is clogged for half the year since it was created.