That 'care' does not mean we start committing immoral acts such as 'discrimination by the State', as we are doing with the laws against Ahmadis. Two wrongs (if you believe Ahmadis are committing a wrong) do not make a right. Your crime is not justified by the crime of another.
In order to counter Ahmadi teachings, mainstream Muslim sects can continue to proselytize their own teachings. After all the Ahmadis are a very small minority in Pakistan, and there should be no reason why mainstream Muslim sects cannot compete with Ahmadis in spreading their viewpoint - is the faith of mainstream Muslims, in Islam, so weak that they have to resort to immoral and discriminatory laws against a minority community?
I agree on that point, since those laws did not reflect the will of the people. But these particular laws against Ahmadis should be opposed both on that basis and a moral basis.