Personally, I subscribe to "Live Internet Theory." I assume that the vast majority of people I interact with are real people, and bots are very much an exception, and often easy to identify.
The Internet connects people with different views who wouldn't otherwise meet and who might not express their opinions if they did. Most of the time when I see people lob accusations of being a bot at someone, it's either because their worldview is too limited to imagine a person thinking differently from them, or they just want to use the accusation as an excuse to write them off. The reality is, I think most people who post like expressing themselves through posts, and rather than go through a bot and posting that, they just wouldn't post.
Maybe I err too much on the side of assuming people are human, but I'd rather do that than assume a human is a bot. Especially because I find the biggest "Dead Internet Theory" types tend to be insufferably unimaginative and close-minded, and I don't want to be like them.