Some people claim that freedom of religion also includes (politically and logically!) freedom from religion.
Would could that mean? That I have a right not to be bothered by manifestions of religion in the public sphere? But that would be a ban on religion in the public sphere as such. Given that religion has always some public elements (like a procession at Good Friday), this would be tantamount to banning religion altogether, unthinkable in a liberal society.

To see this, just ask the same question in the sphere of politics: Could there be a freedom from politics in public? The result of such a "right" would be: no rallies, no demonstrations, no public speeches during campaigns... It would be the end of political activity as we know it, such as it can be found in totalitarian regimes.

Therefore , just as pro-lifers have to accept that pro-choicers have the right to voice their opinion in public (and vice versa), atheists should, within a liberal framework, accept that religious people manifest their religion in the public sphere.