WRONG. No Muslim classifies him as Muslim. First of all, let's research Islam for a second.
Islam is a religion that is not forced upon children but it is asked of them to learn about it. They cannot become "real Muslims" until they hit the age of pubescence which is when a boy is 15 lunar years old, or when he first discharges cum. For a girl it is when she first starts her period, discharges female cum or turns 15 lunar years old. Whichever one comes first clarifies the adulthood of the person.
So when this person reaches the age of pubescence, (which I just explained the religiously correct way to determine that above in case you missed it. It seems as if you have critical thinking problems, so I'm just rehashing bro) and they have learned about the religion in depth, then he/she must recite the Testification of Faith which is "There is no God but God, and Prophet Muhammad is his messenger (you can add Jesus, Moses, Adam any of the Muslim prophets if you want in this testification). Reciting this declares that you are in fact a Muslim, since before you were non-pubescent you are no faith because the Muslim faith requires that the person must be the age of pubescence to embrace Islam since they are not considered an adult who can make decisions for themselves until then.
So let's explain apostasy now. To become an apostate to Islam, you either must say you are of another faith that claims blasphemous things, which Christianity is, because they claim that Jesus is God which cannot be since they believe God does not share anything with his Creations in resemblance or understanding except the fact that he created all there is. If he was a human then that would mean he is weak and has needs, and since he created all that IS, he obviously doesn't have needs or weakness according to Muslims.
Publicly stating "I am Christian" means that you are a blasphemer to Islam, and that means you are not a Muslim in any sense of the word or understanding. Even saying "I'm not Muslim" is the same. Saying The Hindu gods is blasphemous because you are stating that there are gods other than God (Allah, The Creator, etc.) and you are thereby diminishing the fact that they believe that God created all there is.
Ok, now, maybe you didn't know this information before, but maybe before assuming a whole lot of bullshit, you should do some research on what your downtalking.
Btw, I am not a Muslim. lol