A comfortable right-wing slogan mean to shut up anti-war activists.
Let's reclaim it, as in:
The price of freedom is being willing to die for your freedom--and being willing to extend your freedom to almost anyone, even if it means you might die because of your generosity.
So let the mosques go up, let the shuls go up, let the temples of Mammon go up, and let the people worship as they will. And if--big big if--one of those worshippers turns fanatical and tries to kill you and your family, defend yourself mightily.
And if you die, let your epithet read: S/he died for freedom.