Lutherans are sure living rent free in the heads of the RC sect at least on free republic. Maybe they are jealous of sound doctrine?
Probably.
And my best guess is that after a lifetime of being told to submit to the Pope, they can’t handle a Pope who’s outright heretical.
And so they have to blame their boogeyman the Protestants, because the only other option is that the fault lies within Catholicism. Which is horrible to them, because they were taught that Catholicism is perfect for their entire lives.