But the theists position is illogical and unsupported by evidence.
Again, I think this conflating the notions of illogical and irrational. To try to show theism itself to be illogical just can't be done in any interesting way. It does not go against any standardly accepted rules of logic. If it does, I'd love to hear which ones.
I can think of many points in theistic beliefs that do just that.
Maybe you're also conflating theism with particular varieties of theism, e.g., Christianity. You may be able to show within a large system of beliefs like Christians have, that there are some inconsistent statements.
What supporting evidence do they have?
You and I might not accept the kind of evidence that theists of all kinds give for their specific beliefs. Many Christians, for example, see evidence of God's presence and love everywhere in the world. And this is something I think many of them do truly feel.
Yes, I realize there's more to this than what I'm presenting. There are problems of question begging abound. But if we just deny this evidence out of hand, we're not doing ourselves any favors. The conversation has to meet somewhere in the middle.
Stating that their position is illogical or irrational does NOT attribute to them any position, ergo it cannot be a strawman fallacy. I would suggest you look up the definitions of logical fallacies before you use them, because you are using them out of context.
You're getting to be a little Mr. Snippy Pants. You've seen me on here enough to know that I don't need to be talked down to like that. I don't often toss around things that I know nothing about without some kind of caveat. But hey, you must know everything. Except that a straw-man isn't a logical fallacy - it's an informal fallacy. You don't violate any laws of logic by straw manning someone.
But more to the point, it is a straw man because you do have to attribute some specific version of theism to get anything close to a logical contradiction. All the theism has to accept is that there is some kind of deity - whether physical or spiritual. The results of the assent to that belief vary widely.
But since you know so much about logic and are such an expert on theism, tell me: where is this logical inconsistency that is so obviously present.
Theism is based on circular logic. Theism is true because their books say it is true.
What the hell are you talking about? Whose books? Are you talking about religion now, or theism? It sounds an awful lot like you're talking about religion.
There is no confirming evidence outside of this.
A lot of people would just disagree with you here. And really, what good is an argument with an unsound premise? Honestly, the work you'd have to do to actually defend this premise - I just don't think it can be done. At least not in any philosophically interesting way.
Being that the authority of theistic faith is derived from a logical fallacy it is by definition illogical.
What logical fallacy? Are you talking about circular reasoning? Because yet again, you seem to not understand what these informal fallacies are. It might be poor reasoning, but it does not generate a contradiction.
Look, I'm just trying to play devil's advocate here. I don't think it's much to at least grant that some theists (even Christians) have justification for their beliefs. You can be justified in a false belief. I had justification for Santa Claus being real - lots of it. But my belief was still false, and it sucked when I found out.
I think I've explained my position as well as I can. Honestly, I would love to see an argument that draws some logical contradiction within theistic belief - but I just don't think it's going to happen. It's just tough to argue that something isn't the case.
The actual philosophy and logic behind all this is really the only thing about the debate that interests me. We can just crawl up each others' butts and tell each other how smart we all are for being good atheists. Or we could challenge our own thinking, like we encourage theists of all kinds to do.