The last name debate with my partner

Me and my partner are planning for having a baby (one and done) and while he is one of the truly good ones, we have come across an unexpected issue about the naming "system" when it comes to marriage and building a family.

I have a lot of issues with the patriarchal naming system in general. We do plan to get married sometime soon but I will not be giving up my last name which is a huge part of my identity as well as my career. I am in my mid 30s and have a very rare last name that will likely die out in a few generations. I wish to hold on to that if I marry, no matter what.

The issue is that if we would have a child together, married or not, he strongly wishes for the child to be given his last name. As for me I believe it should be my name. We live in Sweden where a child automatically gets the mother's surname (if the parent's aren't married) and I believe this logic makes a lot of sense for reasons we all are too familiar with regarding parenting plus my personal egoistical wish with carrying on this rare name.

We can talk about all this calmly and reasonably with him and while we share very similar views about feminism, equality etc, it is this topic that he is not willing to bend on at all. What makes it problematic for me is that he doesn't really have many valid reasons besides "this is how it has always been" and that he wishes to be included at least somehow on a formal level such as the name.

Honestly, I feel like it will be a battle none of us can win.

Has anyone else been in a similar situation? Even if not, I'd love to hear your thoughts about that topic.