The problems of VII started around the time of WWII.
No, they started in the 19th century, when the enemies of the Church began their infiltration of the seminaries, which St. Pius X noticed and warned about in Pascendi.
I have heard Fr. Feeney and the St. Benedict Center referred to as the original trads
Only by the Feeneyites themselves. Their opinion and self-glorification are, however, ultimately irrelevant because no traditional Catholic considers them that, since they obstinately refuse Church doctrine.
The recent modernist heresy began when Church officials ended the teaching of No Salvation Outside the Catholic Church. Forget about BOB or BOD as I'm not getting into that. The Church has always taught that outside of the Catholic Church, the Church which Christ Himself founded, there is no salvation. Fr. Feeney was censured for teaching this truth, this dogma of the Faith.
The modernist heresy started in the late 19th century, but the modernist crisis stared with Vatican II. Fr. Feeney was excommunicated for repeatedly refusing to comply with several summons to Rome. Hardly the actions of an innocent man.
Fr. Feeney was truly a Saint to defend the truths of the dogma of Extra ecclesiam nulla salus against the heretics that were teaching heresy in all the Catholic Colleges.
Feeneyite propaganda is sickening to anyone who knows what exactly they are refusing (teachings of the Ordinary and Universal Magisterium of the Church since at least the 4th century, and of the Extraordinary Magisterium of the Council of Trent), all in the name of supposedly guarding dogma. I am sure many people are wondering why Matthew is allowing such a disease of judging the Infallible Magisterium to practically take over this forum. We can conclude that either he thinks it is licit to be a Feeneyite (in which case he is leading souls astray), or he agrees with them (which would be even worse), or he has simply lost control, in which case he should consider using some of the means at his disposal as moderator and remember that the freedom of professing error has been condemned by the Church.