This is actually wrong. John and Charles Wesley never left the Anglican Church. The "methodist movement" was actually a "study class" form of learning that the Wesleys were using within the Anglican Church. Consider it similar to RCIA. It was opposed by the Anglican hierarchy mostly because it wasn't their idea.
The separation of the Methodists actually was a result of the American revolution having all the Tory priests flee the colonies leaving no one to administer the sacraments. This happened, of course, starting in 1776.
Nonetheless, the Anglican Church of King Henry was a Catholic Church. There were, however, 2 lineages of the English Christianity, one through Catholicism and on through Orthodoxy.
It was, and then it wasn't.
But at one point, yes, it was....not long before it was not.