Ah yes, the equal holiness of body parts argument. This is what we've come to as Catholics. I've come upon it myself.
Apparently the Catholic Church was deluded by Satan for banning Communion in the hand at least for 1500? years and probably more.
By this logic it would be just as holy to receive with our feet. One can even imagine more insane examples following some of Christopher West's statements to their logical conclusion.
These people have lost all sense of humility due to being told repeatedly by the NO Church that they are all swell gals and guys and are a-ok and Christ is their bud. It is hubris disguised as feel good Christianity.
These types would have asked St. Peter why he was choosing to be crucified upside down? They would have seen his humility as ridiculous pride just as they look down upon veiled women in the NO or those who recieve kneeling.
The root of their problem goes far deeper than communion in the hand. Their religion teaches them liberty ( how dare you tell me how to receive), equality ( we're just as good as the priest, all body parts are of equal reverence), and fraternity (Jesus is my bud, He doesn't mind how I receive Him)
The arguments you are experiencing are all smoke screen. The root of their problem is PRIDE. Communion in the hand = Jesus and I are on the same level.