Shirk is taking partners alongside the worship of Allah. It also refers to taking partners besides Allah in worship. What did I judge to be shirk that is not?Any examples? But I agree with you that making Takfeer is by far a dangerous thing that is best handled by people with great knowledge or scholars which I am not!

And Shirk is also far far more dangerous for a Muslim than rats infested homes so that's not a good example. Besides I believe the rulers have the right to do whats best for the betterment of their land, and Allah knows best.