What makes you think Solana is Centralized? It runs over 2000 nodes. The number is currently is less than that of Ethereum node count, as the demand is less.

It also would be a fair comparison to compare what is existing today. So, please don't say that Ethereum 2.0 will be far more efficient. By that time Solana would have made great strides too. So, let's compare what is existing today. Ethereum 2.0 is being touted for several years and still not ready. We can compare Ethereum 2.0, when it's ready and there, but not now.