....that is just how it works, the spirit chooses, and it's a matter of opinion if the spirit is real or not.
I completely disagree. How can one say if the spirit is real or not without a definition of spirit? To whit, I would think that human spirit exists, but I'm not talking about a literal human spirit than transcends death.
Atheism generally relates to low emotional development. That is my argument.
You can't really list this as an argument, since you have offered no evidence for it. You could offer it as an opinion, I guess.
How this works in Australia I don't know. The British do have a tradition with Ockham, Thomas, Berkely who are quite plain to philosophically validate opinion.
These appear to be universal, rather than local questions. I might refer to local examples to demonstrate a point, but I'd don't think we're talking about anything that is locale specific. With more specific relation to the philosophers you listed, it's a little hard to know what your point is, based only on a list of names, so very briefly for now;
Ockham - assuming William of Ockham. His philosophy on opinion-making and hypothesis-forming are a key tenet to how many atheists have reached the position which they have reached. To be clear, I think your base argument (that atheism is associated with low emotional development, and that atheism mandates a black and white, objective view of the world) is completely false. I think adding 'secular' to this base argument takes it the next step, in terms of 'wrongness', which I suspect would be 'not even wrong'. But I'd be interested in how Ockham in any way supports your base argument, or runs contrary to secularism or atheism. That would allow me to address specific argument.
Thomas - Sorry, not sure to whom you are referring. My initial assumption would be Aquinas, but wanted confirmation.
Berkely (sic) - Assuming George Berkeley. His works are interesting, but I'm not sure I understand what specifically you're referring to here. Obviously, he attributed perception to God, but the work he did on perception doesn't require God as an explanation, and is effectively a study in subjectivity. It seems to tie back to your idea that atheism and subjectivity are exclusive, which seems a pretty ignorant stretch, or that secularism and subjectivity are exclusive, which is flat out unsupportable.
I suspect where all this is heading is that you actually have issue with materialism, and equate that with atheism (which I can understand to some degree) and secularism (which I don't understand at all). This would make the reference to Berkeley understandable to me, but I'm connecting too many dots to be sure, so would prefer clarification. It is worth raising at this point, though, that materialism is not a single viewpoint, but has nuances, and that there are scientific challenges to materialism, not just philosophical ones.