Couldn't this have been done without taking gay marriage as the first example? Or does IT always need to go hand in hand with unconditional progressism?
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?