Jehovah's Witnesses themselves are aware they are just a minor and tiny religion and throughout history it was always like that. The israelites were just a tiny nation.... noah and only 7 others were saved.. abraham and Lot only ones that were saved etc etc always tiny amounts of believers that were seen as 'right' and the big majority seen as 'wrong'
But Jehovah's Witnesses are confident that this will soon change. They are expecting all other religions to be done away with in a short period of time and are confident they alone will stay.