Toleration

Portrait of John Locke, by Sir Godfrey Kneller. Oil on canvas. 76x64 cm. Britain, 1697. Source of Entry: Collection of Sir Robert Walpole, Houghton Hall, 1779. (Photo credit: Wikipedia)

John Locke seemed to think the same way about Papists (Catholics) as many Christians think about Muslims:

As to the papists, 'tis certain that several of their dangerous opinions, which are absolutely destructive of all governments but the pope’s, ought not to be tolerated in propagating those opinions; and whosoever shall spread or publish any of them the magistrate is bound to suppress so far as may be sufficient to restrain it…Papists are not to enjoy the benefit of toleration, because, where they have power, they think themselves bound to deny it to others…It being impossible, either by indulgence or severity, to make papists, whilst papists, friends to your government, being enemies to it both in their principles and interest, and therefore considering them as irreconcilable enemies, of whose fidelity you can never be secured whilst they owe a blind obedience to any infallible pope, who hath the keys of their consciences tied to his girdle, and can, upon occasion, dispense with all their oaths, promises, and the obligations they have to their prince, especially being (in their sense) a heretic, and arm them to the disturbance of the government, [I] think they ought not to enjoy the benefit of toleration. -- John Locke,  An Essay on Toleration (1667)