"Do these people not understand the impact a million of them could have had in the recent marches against Zuma?" - Marc Frick

I gather that in your opinion this contribution of some Christians that pray is "invalid" in our time of discontent. I wonder why.

Some people, including you, clearly prefer to "march" whilst others prefer to "pray". Others both pray and march. 

I am reluctant to judge anyone. 

Tolerance for diversity is indicated. In my opinion that is what freedom is all about.