What’s the Big Deal?

On social media, we learn that vegans, regardless of the rationale that lies at the core of their eating habits, are under attack from meat-eaters. Why? What’s the matter with letting people choose their lifestyles, especially when they’re not forcing themselves on you?
We see posts providing ideas from the clergy instructing the devout on how to counter atheists. Why? What’s the imperative to argue with other people who just happen to see the world differently?
The meme here speaks to the us-versus-them “logic” that the fossil fuels proponents uses against the environmentalists, and, more to the point, against the entire auto industry as it phases out gas and diesel.
Why are we so appealing about argument for its own sake?

Below is the front page of a Florida newspaper from a couple of weeks ago.
Here’s an exciting development (not) in solar PV, which claims (falsely) that it delivers 18 times more power from sunlight than traditional technologies.
Where will the energy come from that will make this building spin?
Here’s an article I won’t be reading, because the answer to the question is so obvious: her voting base loves her racism.
Assuming that Trump is ultimately unsuccessful in overthrowing the U.S. federal government, there will be an ongoing conversation about the content of the meme here.
Here, Socrates reminds us of the problems associated with being what is essentially a tribal species. We tend to look for differences between us, rather than similarities. Then we use these perceived differences as motivation for hatred and, often, violence.
As I told my mom on the phone last night:
In response to the meme here, an appropriate response might be: says who?