You're right that Ethereum's centralized actions during the DAO hack in 2016 sparked some controversy in the crypto community. However, it is worth noting that the Ethereum community later voted to change the code and roll back the hack, which many saw as a demonstration of the democratic principles and community-driven governance that are an important part of the cryptocurrency ecosystem.

As for Monero, it is true that the project uses an inflationary monetary policy in order to promote long-term sustainability and discourage hoarding. However, this policy is subject to regular review and can be adjusted by the community as needed. Additionally, Monero's privacy features have made it a popular choice among users who value anonymity and security.

Regarding Bitcoin Cash, while it may not be as widely adopted as Bitcoin, it has a passionate community of supporters who believe in its vision of a faster, cheaper, and more accessible means of exchanging value. It is important to remember that the cryptocurrency market is in its infancy and there is still much to be explored and discovered. As the technology continues to evolve and mature, we can expect to see new projects and innovations that will further the development of decentralization and empower individuals to take control of their financial futures.

If you just use Monero for it's utility (superior/easier privacy with cheaper/faster txs), and save with Bitcoin, the infinitismal inflation worry is pretty much moot.

And it is irrelevant to your question about decentralization.

19K reachable monero node -VS- 17k reachable bitcoin nodes:

https://monero.fail/map

https://bitnodes.io/

Wouldn't be surprised if xmr was more decentralized in mining as well because it is more accessible. All you need is general purpose consumer hardware that everyone has.