What do you guys think makes humans, human?

I was watching a tiktok video on Connor from Detroit becomes human, how he was experiencing boredom and how that's very human, and that it goes to show him being more that just machine, and I was like really? You can use boredom to identify humanity? I never thought of it that way.

But It also made me think about this one review I saw under the Little Mushroom novel on novelupdates, where someone was like "the MC is more human than some of the human characters despite being a mushroom" because I think the human characters were cruel or selfish (I haven't read the novel). And again I was like, Really? A stupid mushroom is deemed more human than humans. Don't humans themselves demonstrate what humans are, even the most selfish and cruel ones? Or is humanity just all the positive traits?

I don't know.... what do you guys think?