So, in another thread, the discussion turned to whether "heretics should be run through with a sword" etc, i.e. whether the ideal is supposedly capital punishment for heretics in a Catholic State. My answer is no, it is enough for the government to officially promote the Catholic religion without "executing heretics". The below is why. What are your thoughts?
Pope Pius XII in Ci Riesce: "We have just adduced the authority of God. Could God, although it would be possible and easy for Him to repress error and moral deviation, in some cases choose the "non impedire" without contradicting His infinite perfection? Could it be that <in certain circuмstances> He would not give men any mandate, would not impose any duty, and would not even communicate the right to impede or to repress what is erroneous and false? A look at things as they are gives an affirmative answer. Reality shows that error and sin are in the world in great measure. God reprobates them, but He permits them to exist. Hence the affirmation: religious and moral error must always be impeded, when it is possible, because toleration of them is in itself immoral, is not valid <absolutely and unconditionally.>
Moreover, God has not given even to human authority such an absolute and universal command in matters of faith and morality. Such a command is unknown to the common convictions of mankind, to Christian conscience, to the sources of Revelation and to the practice of the Church. To omit here other Scriptural texts which are adduced in support of this argument, Christ in the parable of the cockle gives the following advice: let the cockle grow in the field of the world together with the good seed in view of the harvest (cf. <Matt.> 13:24-30). The duty of repressing moral and religious error cannot therefore be an ultimate norm of action. It must be subordinate to <higher and more general> norms, which <in some circuмstances> permit, and even perhaps seem to indicate as the better policy, toleration of error in order to promote a <greater good." https://www.ewtn.com/catholicism/library/ci-riesce-8948