aldris247:

Those who criticize Christianity often accuse believers of being brainwashed by their parents or families. This argument can be dismissed very easily, as a large number of the Christians I know did not have Christian families or Christian background. It just doesn’t work that way. Faith that is brainlessly inherited from parents is not genuine faith.

Key variable here:  a large number of the Christians you know.  You’re making a statistical inference based on a sample.  You can’t extrapolate from that sample to draw conclusions for an entire population.  Most of the Christians I know were raised as Christians; also, a large number of Christians other people know were raised as Christians (I’m sure I can get multiple attestation here).  If not, they at least have family members or friends who are Christians — who constantly remind them that they need to accept Jesus Christ as lord and savior.  As if that isn’t enough, you go on to commit the no true scotsman fallacy:  “faith that is brainlessly inherited from parents is not genuine faith.”  In other words, them who were indoctrinated (and they are many) aren’t true Christians.  The argument holds though I would use a different choice of words; moreover, I doubt that I would use that argument being that I have stronger ones.