Do you believe hitler was indeed a true christian?
Absolutely as have been many horrific people.
Matt 7:21-23 " 21 "Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of heaven, but the one who does the will of my Father who is in heaven. 22 On that day many will say to me, 'Lord, Lord, did we not prophesy in your name, and cast out demons in your name, and do many mighty works in your name?' 23 And then will I declare to them, 'I never knew you; depart from me, you workers of lawlessness.'"
Don't worry, just as in Matthew 25 he is saying that the Goats will be his followers.
If there is a Heaven I am quite sure there will be far more atheists, agnostics, Buddhist, Taoists, Animists, Satanists, Jews, Hindus and Muslims there than Christians.
Anyone so limited that they can only spell a word one way is severely handicapped!