DD is named after a minor superman character. Not because of the superman link specifically, but because we were struggling for a name and in frustration DP just started reeling off names from her favourite show until we suddenly found on we could agree on.
DD likes her name, and she also likes comic book movies, so when we told her where we'd got the name from we thought she'd enjoy the little connection.
She hated it, she didn't want to be named after a fictional person, thought it was stupid. We had to explain that we hadn't named her after that character, just found a name we liked because of the show.
And that was with a perfectly normal name that isn't primarily connected with that character.
You call your kid Thor, and he's never going to forgive you. The primary reference for that name in the UK is that character. He's going to spend his life getting asked where his hammer is, or what it's like being an Avenger. He's going to miss out on jobs because of it, women will be put off him because of it.
In short, you'll ruin his life. Tell your husband to stop being a twat.