TBH, that article doesn't really make any sense. Saying "because ideology A shares a few attributes with my favorite ideology, it's really just a subset of my ideology" doesn't really make sense. Also, I don't understand how he thinks that pacifism or communalism are unique to christianity. That's just a bizarre claim.
It's also weird how he's aware of the oversimplification involved in classifying birds and bats in the same category, and then he immediately goes off and says the equivalent of "both a birds and planes have wings and a tail, therefore planes are a subset of birds". While that statement can be true from a certain point of view for certain uses ("can this thing fly?"), in the end it's just a bad analogy and bad reasoning.
Which is all not to say that the point I think you're driving at from your selection in that article can't be correct. I would agree that post-religion, people will pick up causes to fight for and act in ways that are reminiscent of fundamentalist religions, but that doesn't mean the fundamental truth is that they're all variations of religion. The fundamental truth is some people just enjoy picking up causes that let them justify bad behavior. This used to include religion a lot more in the past, and now that humanity is moving beyond it, we're discovering new ways to justify the same old behavior that we've always had.
It's also weird how he's aware of the oversimplification involved in classifying birds and bats in the same category, and then he immediately goes off and says the equivalent of "both a birds and planes have wings and a tail, therefore planes are a subset of birds". While that statement can be true from a certain point of view for certain uses ("can this thing fly?"), in the end it's just a bad analogy and bad reasoning.
Which is all not to say that the point I think you're driving at from your selection in that article can't be correct. I would agree that post-religion, people will pick up causes to fight for and act in ways that are reminiscent of fundamentalist religions, but that doesn't mean the fundamental truth is that they're all variations of religion. The fundamental truth is some people just enjoy picking up causes that let them justify bad behavior. This used to include religion a lot more in the past, and now that humanity is moving beyond it, we're discovering new ways to justify the same old behavior that we've always had.