Do you buy your food from pet shop? Or do you take shower in dry cleaner?
Get your resources from the right places. Learn about Islam from Muslim Scholars and not AntiIslam websites and zionist channels.
If Christianity does not make sense to you then be it, but do not generalize about Islam from your view of Christianity. Islam is Serious, Natural and Complete code of life. It is not some Sunday Service, nor it is some vague guess.