[Ronaldus Magnus]

The priests and faithful of the Society have not been excommunicated. They are not heretics.

I don't know anything about that cardinal or his authority on the topic, but regardless the statement is irrelevant. The question isn't whether the priests and lay people are heretics, but whether they are schismatics. I personally believe that anyone who would deny that the SSPX is in schism is either a fool or a liar, and this is exactly why their arguments and equivocations are always so weak. I am not interested in discussing this with them, however, since I would rather spend my ecumenical efforts in conversation with more intellectually honest protestants.

As Pope John Paul II said to the priests and laity of the SSPX:

In the present circumstances I wish especially to make an appeal both solemn and heartfelt, paternal and fraternal, to all those who until now have been linked in various ways to the movement of Archbishop Lefebvre, that they may fulfill the grave duty of remaining united to the vicar of Christ in the unity of the Catholic Church and of ceasing their support in any way for that movement. Everyone should be aware that formal adherence to the schism is a grave offense against God and carries the penalty of excommunication decreed by the Church’s law [Cf. Code of Canon Law, 1364].

[irishjuggler]

I don't know anything about that cardinal or his authority on the topic,

FWIW, he's the top cardinal at the pontifical Ecclesia Dei commission which handles relations with traditionalist (aka Latin Mass) Catholics, so his views aren't exactly irrelevant.

[annalex]

You just called Pope Benedict and Cardinal Hoyos fools and liars.