I disagree, and I would submit that you have more than just a little "subjective involvement" that would taint your analysis.
Most Catholics do not even know what "Calvinist" means nor the connotation that strict Calvinism carries re: real hardcore anti-Catholicism.
But even fewer Joe-six-pack Catholics are even aware that schismatic traditionalism exists.
Your average Catholic is much more likely to encounter the anti-Catholicism engendered by Calvinistic thought than the anti-post conciliar agenda of schismatic traditionalists.
But when the two join hands and work synergistically, a real threat emerges that rank and file Catholics cannot ignore and have a duty to repel.
Traditionalist orders, whether they be Indult, Lefebvrist, sedevacantist or Feeneyite, also tend not to aggressively seek parishoners from the mainline Catholic parishes. They don't send people out to street corners or to mainline parish parking lots to hand out leaflets. They don't go out looking for you; you have to go out looking for them.