@AppleJinx Nope, not at all. The Kamado Family's ancestors, Sumiyoshi and Suyako, were merely saved by Yoriichi, who also gifted his earrings and adapted his Breath of the Sun as the Dance of the Fire God for them.
So rejoice, there is nothing special about Tanjirou at all. No privileged lineage, no unique powers aside from his sense of smell, and every hint that suggested he's "special" are merely misdirection from the author; he is but a completely normal country bumpkin who became as strong as he is by sheer hard work and devotion to his family.
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I concur that it would have been illogical for Yoriichi to be put to death, but let's recap their reasoning:
[ol]Muzan escaped - if Yoriichi didn't bother to ask him a whole load of stuff (see Ch 81 for what's likely the full transcript, that probably took at least 15 seconds), he might've finished him off right then and there?
He let Tamayo go - this completely goes against the mission of the Demon Slayer Corps. We know that she turned out well, but was unprecedented at the time. What if she'll eventually kill again?
Michikatsu became a Demon - this is arguably the most serious. It was the Sengoku Period, betrayal is a heavy, heavy crime for Samurai, atop of becoming a mass murderer. It is not rare for the family to be punished for the heavy crimes of one of their members.
Their members died from the Mark - recall from Ch 178 that many hunters ended up dying after they attained the Mark. I wouldn't be surprised if a number of them blamed Yoriichi to introducing Breathing into their regiment[/ol]
While I definitely don't think Yoriichi deserves death, I can't blame them for being unhappy