But if a politician gets elected with such a policy being a key election promise - i.e. indicating a majority of residents do agree there should be such a polic

But if a politician gets elected with such a policy being a key election promise - i.e. indicating a majority of residents do agree there should be such a policy - is it still 'far beyond any reasonable line'? Why should you personally get to decide where the reasonable line is? (FWIW, I do actually agree with you, but your and my opinions are just that - opinions).