This is Called a Self-Fulfilling Prophecy
The controversy is simple. The gay parade in Chicago is too big for the old route. So the city had it extended and moved slightly to make it easier for floats to turn some corners along the way.
The change in the route has a Catholic priest upset because his church is on the route and he doesn't want gays around.
So the Archbishop (a totally unbiblical position) weighs in and then arbitrarily compares gays to the Ku Klux Klan and says he doesn't want gays protesting the church. Well, maybe if he didn't compare them to the Klan such demonstrations would be far less likely. I can't see how he couldn't think that such comments would encourage the very thing he claims he doesn't want.