Never belong to a crowd; Never belong to a nation; Never belong to a religion; Never belong to a race. Belong to the whole existence. Why limit yourself to small things? When the whole is available.
A clean confession combined with a promise never to commit the sin again, when offered before one who has the right to receive it, is the purest type of repentance.
All too many Muslims fail to grasp Islam, which teaches one to be lenient towards others and to understand their value systems, knowing that these are tolerated by Islam as a religion.