Charles Wesley wasn’t a Methodist. He was Anglican (Church of England). “On his deathbed he sent for the church’s rector John Harley and told him “Sir, whatever the world may say of me, I have lived, and I die, a member of the Church of England.” https://en.wikipedia.org/wiki/Charles_Wesley
“Charles Wesley wasn’t a Methodist.”
Jesus Christ wasn’t a “Christian” and Martin Luther wasn’t a “Lutheran.” The Wesleys, like Jesus and Luther, were reformers and the Wesleys were trying to change what they believed were the errant practices of the Anglican church. It was the followers of the Wesleys who became known as Methodists.