This reminds me a bit of something I read about why dictatorships, and corruption, are so common world-wide. I forgot the name but there was a book on it.
The basic idea was that when essential services are lacking and not guaranteed for everyone, such as healthcare and education you must sacrifice your integrity in order to secure those for your loved ones.
So, sure, behind all this can be plain crab-mentality, racism and so on. But I also imagine a significant factor can be attributed to fear of losing something seen as essential and not guaranteed.
a significant factor can be attributed to fear of losing something seen as essential and not guaranteed.
This is a lie told to us, as zephr_c alludes to, by those manipulating society for their own gain.
The reality is that there is enough food produced globally to feed 10 billion people, we only don't because it isn't profitable.
That isn't to say the fear of being left without, under our current system, isn't a very real one, it is, and I'm subject to it myself as I'm sure you are, my point is that we need to be aware (and make others aware) of who is telling us there isn't enough (and putting our lives at risk for money by exploiting us more and more as well as withholding food and housing) and why, rather than just accept it as an inevitable reality, because it isn't.
For the people being manipulated, yes. That is usually a significant factor. Often the main one.
The manipulators don't actually have that concern though. They're generally pretty well off. They just want to change the rules to be even more in their favor in any way possible no matter who it hurts.
The author isn't wrong about the bible explicitly requiring first breath to indicate being a soul, the premier verse on this is Genesis 2:7 "God breathed in his nostrils and he became a living soul" I wear a 'Jesus is pro choice' shirt around and this is one of my arguments against those who tell me I'm wrong, the other being the whole God let Adam kill billions of unborn people thing.
While this is an interesting flash point for anti-abortion activism, it isn't strictly speaking the origin. I'd recommend the first episode of Jon Ronson's podcast series Things Fell Apart for a look at the much weirder beginning of the story.