There are members of SSPX that have been for years saying that Pope John Paul II was the Anti-Christ, along with Pope Benedict. These are a few radical elements in the SSPX group. But the schism has hurt the society.
In terms of history, the Tridentine Rite did cause trouble in India. When the Portuguese arrived after the English, they were able to bring the Saint Thomas Christians in communion with the Roman Catholic Church.
These Saint Thomas Christians of Kerelya province in India had 7 Churches established one of Jesus' original twelve apostles.
Since the time of Christ (or rather the time that the Apostle Thomas the doubter converted them), these people said Mass in the vernacular of the people. They did have a Mar Thomas (Syrian Bishop) sent to them around the 4th or 5th Centuries after one of the early Church Councils.
Enforcing the Tridentine Rite (the rite used by SSPX) caused schism with these Christians of India in around the year 1500. I believe two of the original 7 churches broke away with Rome and are still part of the Syro-Malobar Church (spelling/accuracy?).
To base your religion just on the Tridentine Rite is wrong. To base your religion on precepts and beliefs that prevent liberal, bad influences in the church is good.
There is both good and bad in SSPX just as there is both good and bad in the Vatican II movement. Vatican II has allowed errors to enter the Church, which is why SSPX is popular.
SSPX has good, solid seminaries. I assure you will not hear rock 'n roll, rap music, and other nonsense in the SSPX seminaries which has been going on in American seminaries since the 1960s.
There are things Rome can learn from SSPX. And there are probably things that SSPX can pick up from Rome and other traditional elements of the Church.
One example of good done by SSPX is that vestments that were going to be discarded by Saint Patrick's Cathedral in New York was picked up by the tiny SSPX community in Saint Marys, Kansas. Many of the vestments were handstiched by nuns pre-Vatican II and are beautiful vestments.
Jumping to the conclusion that the Archdiocese of Boston will be unfair to this group is not wrong in my opinion.
The English Bishop who made such terrible comments about the Holocaust is the one who has given SSPX the black eye -- not the Archdiocese of Boston.
In Atlanta, the SSPX church was advertising that it was a Catholic Church. During the time of the schism, they were just the SSPX and outside the Catholic Church, so that was false advertising with the Phone Company. Even though I had family members in St Marys, Kansas, I complained to the Phone Company about this advertising.
It could advertise as a former Catholic Church group that performs the Tridentine Rite for Mass...
At that time, the Archdiocese of Atlanta had established a Tridentine rite only Parish -- Saint Francis de Sales.
The SSPX Church actually rented space in a hotel for its Sunday Services and it went by the name of Saint Michaels...
Then why spend almost 20 paragraphs beating up strawmen under the false headline "I disagree"?
When the Mass was standardized after the Council of Trent, all Rites that at that time had been celebrated for more than 200 years were able to continue. So, if the Catholic Churches in India had had their own Rite, they would have been able to continue using it.