No. I am explaining to you that if I put the term atheism in proper case, I'm referring to it as a religion. I follow the same convention with the word "paganism," where by in lower case I am not referring to religious practices and in proper case I am. It is grammatical convention to put religions in proper case.
It's grammatical convention to capitalize proper nouns in general, from names of religious groups to movie titles to the names of political movements.
What makes "Atheism" a religion? What are the tenets of the religion called "Atheism"? How does "Atheism" differ from "atheism"?
It isn't. A conviction needs to be deeply held for me to call it "religious." Or, as @Windwalker puts it, something of ultimate concern for that person... something that is an anchor or axis of their worldview or way of life. One can be "religious" about sports fandoms, taking care of one's children, etc.
I have Windwalker on ignore, so I don't see things that he posts unless someone else quotes him without the header info.
Regardless, I've heard that definition before from others; I reject it. If someone goes to his Baptist church every Sunday, sincerely believes in its teachings and tries to follow them, etc., that's his religion... even if he cares about the Green Bay Packers more than his church.
It's a backwards way of looking at things. Just because someone feels their religion is very important to them doesn't mean that what's important to everyone else is their religion.
I'm not one of them. I simply find the word accurate to use in at least some cases. Atheists who are particularly devoted to their atheism and make it a big deal in their life are certainly religious about their atheism. If atheists are disturbed by being called religious, I'd suggest they might re-examine what the word "religious" means and why they respond to it so negatively. "Religious" is not a dirty word. Or at least it shouldn't be.
I think we may disagree on what "religion" means. I would say that it means something along the lines of "a community of shared belief, practice, and worship."
IOW, if there's no community, it isn't a religion. If there's no worship, it isn't a religion.
A religion isn't just any cause that someone feels strongly about.
No, it does not, and I didn't say that it did. But it does make one religious about that thing. Religious =/= religion. Granted, the things one is religious about are typically the underpinnings of one's religion.
"Religious" means "relating to or believing in a religion." It implies a religion. No religion, no "religious".
What? How on earth did you get that from what I said? I don't think that at all!
You argued that the reasons why theists and atheists do similar things is that atheists act in a religious way. I'm saying that both atheists and theists act in a human way.
Frankly, I could not tell you what "live like a theist" or "live like an atheist" even looks like. That sounds like nonsense. "Live like a Catholic" or "live like a geologist or "live like a gamer" are things that compute.
It varies depending on the beliefs of the theist, but for all intents and purposes, the vast majority of theists I've ever encountered live as if the god they believe in might as well not exist. If they ended up atheists, the only difference in their behaviour would be where they spend their Sunday mornings (or other worship times) and which charities they support.
Generally, people who say they trust in God, rely on God, trust in Heaven, etc. don't actually act as would be expected if they really did trust and rely on these things.