This is debatable. It was very close and the large numbers of English retirees in parts of Wales that made it seem that Wales voted to leave. Brexit is very much an English project.
I would be very interested to see what a vote for 'English independence' would return. It'd be fascinating considering the benefit we gain from it, but I wouldn't be surprised to see a large majority vote to go it alone.
Citation: https://www.theguardian.com/uk-news/2019/sep/22/english-peop...