Nope- once again:  Jesus never said that *"praying openly does you no good,"*and no one agrees with you.  Not one Biblical scholar, not one Church leader, not one Sunday school teacher- no one.  That nots what said in Matthew or by Christ, no mater how badly you wish it were true. 

Secondly,  if you think that about Christians, you should get out more.  They call it "The Judeo-Christian Paradigm" *Precisely because* Christianity has its roots in Judaism.  Honestly- you need to reengage that "pastor" you yours for some serious Biblical lesson.