>>...dog kennel open up next door to them? Or better yet, a hog farm? >>
The First Amendment does not prohibit the regulation of hog farms.
It DOES prohibit government interfering with free speech and the right to assemble.
And if you are familiar with American History in the least, you know that the right to assemble in homes for religious worship was one of the things the Revolution was fought for.
Ok, then, how about a Rock Concert next door to your house?
I agree with you that the law needs to be changed, I find the fact that it specifically mentions religion as offensive as you do.
I *do*, however, understand why such a zoning law exists.