Christianity was a Valid Religion when...

Actually, at that point is wasn't an institution ;)
Also, that was when persecution was heavy - they thrived under it because it created an environment unsuitable for "the flesh" to thrive. When the heat's on, the petty BS goes right out the window. Totally painted into a corner.

It wasn't until they became wealthy and politically powerful that the wheels started coming off and the Dark Ages were conceived. The focus was shifted to worldly things, hierarchies were established & exploited. . .the popes emerged and utilized blackmail & assassination against the slightest differences in opinion. Soap opera city.

Judaism has caused more harm than any other religion...FACT. Both in its own right as a dogma that promotes racial superiority and world conquest through genocide and exploitation of the useless eater non jews and the fact out of it rose Christianity, Islam and Satanism, all 3 of which (ironically satanism by far the the least) has caused unbelievable damage to humanity through suppression of knowledge, torture, murder and genocide.