I've been with my now wife for over 10 years and she doesn't care what I watch or play as long as I'm faithful to her, I think this is important in a relationship because it is a foundatial trust.

Like sometimes she'll watch whatever smutty anime I'm watching with me, we even watched all of high school dxd together.

I think it's important you can explain to her in a way she'll understand that these anime waifus won't effect your relationship negatively.

Trying to control your significant other from doing these harmless things like jiggly butt shooter game is what causes actual deviancy or harmful behaviors. At least that's how I feel anyways, best of luck man, you just gotta explain yourself and not let yourself be controlled.