Didn't KK just
... ((((KK))))
I have rarely if ever encountered such an attitude ...but....then....
I had a message on Facebook a day or so ago from someone I don't know, a person not even on my friends list who had seen a post where I had mentioned Tarot & Mediumship on one of my friends walls....The message read
"Do you know what your doing is witchcraft? - why dont you leave them alone> do you think you can CONTROL THEM?!?!?" - normally I would just hit delete & shrug & leave it but there was something about this guys picture that irked me....
...so.. I sent him a very lengthy reply. pleasant but extremely firm & explaining (in terms that even a ignorant fool like him could not fail to understand) what Witchcraft is, what Tarot is & that Mediumship is not about control but communication. I also pointed out that perhaps in future before making comments about a persons way of life & work he should consider whether he actually has any pertinent knowledge so as not to repeat making a complete fool of himself when doing so!... I did get a reply unfortunately no more intelligent than the first but at least agreeing that he knew nothing about either!
I would take the same attitude with your friend to be honest...point out that he knows little to nothing about what he criticises & maybe if he bothered to do a little genuine research he would see how ridiculous his statements sound
Good Luck with your Tarot studies