We often see this debate about whether Wonder Woman should be primarily a tough warrior or an empathetic peacemaker, but the truth is she should be both. The two roles are not contradictory, as demonstrated by Tanjiro.
Tanjiro is a popular shonen protagonist. While he is able to sympatize with demons through the understanding that they were once humans who had their lives go terribly wrong, he still condemns any who kill innocent humans and does not hesitate to cut them down, like Batman would. The demons he slays are sometimes just relieved that someone has finally "recognized" them or their good qualities.