The problem is this:

They have the right to march in Public and those who will be offended by it *do* have the right to be offended.

But, they do not have the right to deny them to march or gather. Denying the march permit because it offends some is over-the-line.

Just stay home. Don't go to the area. Have a family picnic in the backyard. Etc.

And for those who don't want it in their family space, they more than likely need to turn the TV off. But I suspect they already know that.

Otherwise, it's the same dang thing as these people who are up in arms about Xtians in Public.