You should believe whatever it is that you think is true. If your sense of logic and reason drives you to no longer believe in religion, then you should give up religion. If your sense of faith in your god is strong enough that you believe in them in spite of whatever else you see or hear, then you should continue believing. But there's no sense in lying to yourself. No sense saying you believe in something that you don't have the heart for just because you "want" to believe. There are many highly intelligent religious people, and many highly intelligent atheists. There is a correlation between intelligence and a-religiosity, but that doesn't mean that your choice either way has any bearing on your own intelligence, the correlation is merely an artefact of large groups: it doesn't work on the individual level.
However, if you do believe that ToK is dangerous for religious culture, it might be because deep down you believe that religion only works if not questioned. Because ToK is all about questioning beliefs. It doesn't seek to turn you atheist or turn atheists religious, merely to provide perspective.
If you want to discuss this more, there are a large number of potentially relevant subreddits inhabited by people who would love to help you out.