I can't see how those who claim to be Muslim though killing and abusive to our people can be forgiven over one who has never done a single crime against Allah or Muslims .....
So you are saying the saudi who raped that somali orphan girl will be in heaven while the gaal who took these orphans in and cared for them will dwell in eternal hellfire?
In short,
yes. To Allah, the most heinous crime is Shirk [association with another or disbelief in him]. Not rape, murder, sorcery, adultery or any of the other major sins of which one can make Tawbah [repentance] from. So yes, a sinful Muslim stands to be in heaven at a much greater rate than a philanthropic infidel.
Even if a very sinful Muslim is sent to hell, the individual will likely only dwell in hell for a period of time after which they will be granted mercy by Allah.