sed contra... It is written, "Go out into the highways and hedges; and compel them to come in" (Luke 14:23). Now men enter into the house of God, i.e. into Holy Church, by faith. Therefore some out to be compelled to the faith.
respondio, Among unbelievers there are some who have never received the faith, such as the heathens and the Jews: and these are by no means to be compelled to the faith, in order that they may believe, because to believe depends on the will: nevertheless they should be compelled by the faithful, if it be possible to do so, so that they do not hinder the faith, by their blasphemies, or by their evil persuasions, or even by their open persecutions [...]
On the other hand, there are unbelievers who at some time have accepted the faith, and professed it, such as heretics and all apostates: such should be submitted even to bodily compulsion, that they may fulfill what they have promised, and hold what they, at one time, received.
ST II-II.9.8
But... heretics sin more (by their resisting the truth of the faith they have) than Jews and heathens, but the latter err more ... unless you are a Manichee then all bets are off:
The second thing to be considered in unbelief is the corruption of matters of faith. In this respect, since heathens err on more points than the Jews, and these in more points than the heretics, the unbelief of heathens is more grievous than the unbelief of the Jews, and that of the Jews than that of heretics, except in such cases as that of the Manichees, who, in matters of faith, err even more than heathens do.
ST II-II.9.6 re.