Okay. We can get mixed up on words a little once in a while. Christianity is the only religion where salvation itself is given by God as a simple and pure gift, if the person accepts it. All other religions that offer salvation have the individual working for it a bit at least.
I find that to be a flaw. A murder, rapist, or mass killer could be a Christian. After killing thousands of people, he/she should still be granted access to heaven where everything is great?
There is rumor, and strong evidence here and there, that Hitler made it to Argentina after WWII, and died there in his 90s.
If Hitler turned to Jesus in repentance for his crimes, and accepted that God would forgive him because of the sacrifice Jesus did on the cross, even Hitler would be saved.