I don't think we have the right to call them heretics, just lost.
On an individual basis, there are a good number within the
Novus Ordo who, by their very words and actions, are heretics. Some would argue the same regarding certain members within "Trad" circles.
However, as a blanket statement covering every Catholic attending the
Novus Ordo, I agree with the above statement. Unless, of course, someone here has the gift of being able to read everyone's soul.
If someone is clearly, and proudly, living as a heretic, then don't pray with them.