Gay marriage (or "marriage for everyone") is a recent, substantial change to a law that is familiar to many French people. I thought it was a great example despite its somewhat controversial nature.
You might be forgetting that the civil code is an entirely political product.
And seriously, every single new law is pushing somebody's agenda. The author could've chosen the "animals are human being" change and we'd have another you yelling not being fond of developers pushing their love for animals.
Here's a tip that will massively improve your personal quality of life: Stop getting offended. Don't you have better things to do with your time?