Ethereum Facing Security Issue From Too Much Staked ETH

In this thread posted by the Everstake team they raise the point that "Past a certain staking ratio, more ETH being staked does not actually make the network more secure. But it keeps increasing gross issuance.

And if a small number of large providers end up dominating the validator set, the slashing mechanism that enforces Ethereum's security becomes effectively unusable. A provider controlling enough stake becomes too big to slash without causing systemic damage to the whole network."

Further posts in the thread say three camps have formed with differing opinions on this staking related issue, without being able to come to a consensus on a fix.

Thoughts?

https://preview.redd.it/2u02fc0hky3h1.png?1113&format=png&auto=webp&s=a448979c219e1967659e4b88fe37ec226ce5b7ce