I see no point in debating whether or not a creator exists. My problem is the nature of the many gods that men have imagined, the way in which they pretend that their god is the only one and that (s)he/it has revealed a set of rules by which we should live in order to ensure an after-life that is better than this one.
I also have a problem with the idea that we can appeal to the god(s) in an attempt to get him/her/it to change his/her/its design to suit our personal needs, maybe making some kind of sacrifice or performing rituals in order to 'buy' a positive response.
What we experience is what it is, however it came into being. Changing it by means of prayer/ritual/sacrifice, rather than by doing the work, which is what most religions teach, is the aspect of theism that I cannot accept as having any logical basis.