If Price of Solana or Polygon crashes to $0 then what will happen to my $1Billion USDC on either of these chains? Will USDC De-Peg on just these chains? Solana or Polygon are POS chains not POW so what happens if validators of those chains unstake their Solana or Polygon and Panic sell their Solana or Polygon tokens, will this destroy/finish the polygon or solana L2 pos networks or decrease the security of these networks making these networks weak for hacks meaning my £1billion usdc is stuck forever in 'network limbo' or gets stolen hacked easily in those L2's and by then will it be impossible to bridge back my $1 Billion USDC back to the main Ethereum network and I lose a $Billion forever?
First thing is that if you're a current and informed user, you will be able to see this when becoming before it hits on you, most of these related incidents would have come with a warning sign and not all of a sudden.
Secondly, a particular coin may crash while the network remains, this may not be the same condition on every situation anyway, we should also know that crypto is having risk in it, we should make use of a network we have more information about their consistency and performance, having a huge amount of money should not be a problem for us to afford paying the ethereum gas fee, let's be realistic here.
Like what kind of warning signs do you see in L2 networks before bad things happen?
You mean the L2 network can be 100% operational as normal if the native token crashes in value?
Is not just about cheaper fees, its also how fast the transaction take to be sent or received.