You can't think of a fascist as a person who can be reasoned with. A fascist sees compromise as failure, as one once told me directly. It's you losing a battle with them, boosting their morale, telling them this is a war they can win. They value dominance and you proved they could dominate.
If you give a fascist an inch, they will take everything.
Do not concede points to them if you want to bargain or negotiate, because they're not here to be civil. They want to eliminate you in the most horrible way they can currently achieve.