It is basically referred to as Proof of Stake. When a transaction takes place in the Ethereum network, it used to be done with proof of work or mining to confirm that transaction, but now it is no more, now proof of stake is used for confirmation.
Suppose, proof-of-stake power equivalent to 100 ETH. Now to confirm a transaction, minimum 51 ETH of 51% of the total proof of stake must agree that the transaction is valid.
Now it turns out that 32% of the total prop-of-stake is stored in LDO. And it is increasing day by day. But once they reach 51%, they can confirm any transaction themselves. Able to make false transactions, spending the same coin twice. That is everything in the Etherium network is then under their control. This is very risky.
For this reason, other proof-of-stake services are being asked to store more Ethereum there. Vitalik Voting is tensed about it. This is why he wants other service providers like RPL to allow people to stake Ethereum. The RPL pump is also made for this reason.
In general, it is not right to allow any platform to store too much ETH, it is too risky for the network.
