Have you considered just putting him in his own pen/coop for several months to give the hens a break and work with him one on one without the hens around to insight his protective instincts?She doesn't want him either, just based on how horrible the hens look due to his constant mating.
That said, I'm the type that runs into roads to help turtles across, so I don't believe in taking a life unless absolutely necessary.
And if you know he is flogging you, you cannot ever go into range of him without boots and jeans. If you are wearing the right clothing, it doesn't hurt to get flogged. It's just annoying. Then when he starts flogging you just stand there or slowly walk into him and let him flog away until he finally just gives up then go about your business as if nothing happened. That will go a very long way into teaching him that flogging doesn't work with humans.
I've been working with my boy for over a year and he gets better each day but he was never as bad as yours was in the first place. Why do I put up with him? As with you, I raised him from a chick. He is an incredible rooster for the flock, he ONLY gives me attitude, he's not that bad, there are no children involved and I like him.
It's up to you to work with him, as long as there are no kids around that could be injured by him.