MDD, you’re right. It says Harugei Malchus, not Harugei Beitar. (BB 10b)
Actually, Sefer Chassidim says that even by the real, original, Kiddush Hashem, there are levels. He says that when someone allows himself to die rather than transgress one of the Shalosh Aveios Chamuros, while thinking how good this will be for his family, won’t be getting the full S’char.
Obviously, you would say there should be a difference between someone who willingly died to sanctify Hashem’s name, and one who got killed. Nevertheless, they are called Kedoshim.