Henry was infatuated with Ann Boleyn....she played him along and refused his advances. He was a pompous ass who was used to getting what and who he wanted. She insisted no sex unless they were married....Him being a twat decided to try to get rid of wifey so he could get Ann.
He wanted rid of his wife...and she refused annulment...so like all power mad nuts he decided to change the marital arrangement by introducing his own version of his religion because the pope didnt allow his annulment ..... He rode roughshod over his court and nobles...anyone disagreeing with him was demoted or removed and it got to the stage where some were locked up. He was no democrat!! Lol...
Henry VIII was a tyrant. Dont be making him out to be in any way reasonable....he wasnt. He wanted what he wanted and did whatever it took to get it....in everything. And nobody stopped him.
As for the line of succession argument for his behaviour......he never accepted that he could possibly be the one with the problem in that department. He got rid of/murdered each wife as it suited him...and divorce wasnt even in his vocabulary at that stage.
The church of england essentially derived from a mad lunatic king's tyrannical greed, lust and obsession with producing a male heir.