I notice Charles commenting on Cardano becoming the most decentralized in the world.How much more decentralized than Ethereum,and others will it be?Will this cause Cardano blockchain to overcome it’s competition as far as users go?

According to Charles Hoskinson it is about 50 to 100 times compared to Bitcoin - Make up your own opinion about Ethereum - Source is Etherscan:

To get actual data use

Here is the breakdown for Bitcoin. Looks pretty centralized: