Centralized in what way? Be specific.
Monero mining is more decentralized than Bitcoin since anyone has the ability to mine.
Monero has just as much, if not more, nodes as Bitcoin.
Even Bitcoin Cash is more decentralized than Bitcoin when it comes to node software since they have 5 major node softwares. 97+% of Bitcoiners are beholden to Bitcoin Core and funded by Blockstream:
https://luke.dashjr.org/programs/bitcoin/files/charts/software.html