ummm...no!
not all of any denomination are Christians, and certainly not Catholics. Yes there are catholics that are christian, no doubt. I have known some, but most are catholics to be catholics not christians, as their lives clearly prove, and they do not have the slightest clue what the christian faith is. They only know what the catholic religion is. This could be said for several denominations so I am not picking on catholics.