When did I do that?
Sorry but you seem to missed my point that Buddha questioned all Religions.
Buddha didn't question religions on the basis that they were religions (referring to your post, which specifically addressed religions) but that as methods for removing the cause of suffering, they were insufficient.
There he would tell them that their faith, its teachings and their teachers were totally WRONG IN THEIR BELIEFS.Some
If the Buddha was around today he would tell Christian, Muslim and Jewish leaders that they were totally WRONG IN THEIR BELIEFS.
beliefs included in the tenets of religions are not wrong. Some
of the teachings of many religions can also be found in the Buddhist teachings, for example, the idea that one shouldn't kill or steal. So, I doubt that if the Buddha were here today (and how can you be sure that he isn't?) that he would make such a generalized condemnation as you suggest. If he we engaged in a debate over a specific question, for example, over the existence a "soul", he would probably argue that point successfully.
What the Buddha saw was that regardless of what people actually believe or do not believe,
regardless of what label they give their belief system,
and this includes Buddhists as well as everyone else,
that the the causes of suffering are the same for all beings,
the method of removing suffering are the same for all beings,
and the path to liberation from the recurrence of suffering,
the dharma that he taught, is the same for all beings.