Religious folks are all ideologues since their belief system trumps any evidence to the contrary of that. Everything that religious folks accuse atheists of doing, they do themselves.
I do agree however that there are some atheists who are ideologues. When they become adamant about stuff such as does Hitchens or Harris, then they are no less ideologues than those they criticize. Dennett and Dawkins avoid that trap because they are genuinely open to new ideas, discovery and exploration. If you haven't read them then you wouldn't know that.

The Creationists are indeed delusional because their ideas run contrary to what science shows us for example having humans ride dinosaurs. I like to separate the actions of people from what they put out there to believe. If I see hostility, victimhood claimed by religious people,
particularly Christians who are in the majority in the U.S., name calling, phony umbrage by those whose faith is flimsy because it can't stand criticism then I know that we are in the land of hypocrisy.