If Revelation 14:9 states that whoever "worships the beast and his image, ?

and (in italics) receives his mark on his forehead" shall have eternal torment, then why do people think that this torment also applies to unbelievers of Christianity? This verse clearly stats that only the Antichrist or those who worship the devil will be tortured endlessly. Note: Revelation 14:11 says that "the smoke of their [the devil-worshippers an the Antichrist] torment ascends up forever and ever." It doesn't say anywhere that Muslims and Hindus and other unbelievers will be tortured endlessly. So why do people think this?