Catechism of the Catholic Church (CCC) Paragraph 847 states, “Those who, through no fault of their own do not know the Gospel of Christ or his Church, but who nevertheless seek God with a sincere heart, and, moved by grace, try in their actions to do his will as they know it through the dictates of conscience — those too may achieve eternal salvation.”
I have been a history student for 30 years and can see the difference between what "laws" state and what in fact happens. I don't throw rocks at the religous beliefs of others as long as they leave me alone. We all will answer to God for our actions. There will not be Catholics, Baptists, Methodists, Lutherans or Episcopalians in heaven. These are man's institutions.