Monero is more decentralized than bitcoin my friend, who said that to you lied..
Discussion
Bitcoin is more decentralized in terms of hashrate and nodes. Not sure what metrics you are looking at
Mining is centralized, how can you say hashrate is more decentralized?
How are you comparing hashrate? They have two completely different PoW algos. That's like saying 20 centimeters is longer than 5 feet because it has the bigger number.
Not sure what makes you think Monero is less decentralized by nodes. Monero is only a fraction of a percent of Bitcoins size, yet it has similar node count to Bitcoin.