Here is the version published by the SSPX in 2018 on their website:
http://fsspx.news/en/news-events/news/general-chapter-final-address-39467

And here is the original version from 1974 by Archbishop Lefebvre:
https://angeluspress.org/blogs/tradition/1974-declaration-of-archbishop-lefebvre

Good work, Apollo. I hope the good bishop will feel compelled, finally, to issue a statement that explicates the GC’s “disguised defeat” in greater detail. There is nothing disguised in this amended, not to mention, emasculated 1974 declaration. Along with the sad election results from the 2018 GC, this foreshortened docuмent expresses the in-your-face attitude of the sspx hierarchy, and their unrelenting efforts to be reunited with the apostate Conciliar church. It constitutes a total betrayal of the sspx faithful, IMO. I doubt, however, that most of them care at this point.

Alas, the Archbishop, IMO, may have helped, though unwittingly then, to set the stage for this most recent and sorry development. Yielding, perhaps, to the incessant promptings of old guard sspx types like Fr. Schmidberger, he signed the Protocol of Accord on May 5, 1988.

 
Only 7 months earlier, on October 4, 1987, had he given the famous “Apostasy” sermon, wherein he decried any possibility of collaboration with Rome. Wherein, as well, he accused Rome of deChristianizing society. Wherein, additionally, he declared that Rome had lost the Faith, and was in “apostasy,” declaring openly that “Rome has left the Church.” He capped his remarks by stating: “It is sure, it is certain!”

There are only “two last remedies,” as revealed by Fr. Agustin Fuentes in his 1957 interview with Sr. Lucy. They are, quite simply, total devotion to the Immaculate Heart of Mary and the Holy Rosary. The sspx does not provide an effective remedy to our deplorable spiritual state. The Old Mass will not save us now. Neither is the traditional priesthood equipped to rescue us at this point, and I include the so-called "Resistance." Only devotion to Our Lady and to Her Immaculate Heart can remediate the situation. Only the daily Rosary can satisfy the Heart of Jesus, and appease His pending wrath. Only the papal Consecration of Russia to Her Heart promises any kind of future peace.

 

Klas: A mountain out of a mole hill?  If they wanted to  cover up the declaration why did they include a hyperlink to it via the word "declaration?"

Klas is right.  These fellows are clever enough to link at the bottom to the whole 1974 Declaration, judging, I suspect, that most people won't bother to read it.  So the juicier portions are simply indicated by "(...)"   Now no one can accuse the neo-sspx of abridging ++L's original docuмent.  So it is exactly what the hierarchy would want folks to believe about its critics, i.e. They are simply making a mountain out of a mole hill.

NOTE: This part was left out of the original post (my fault) which belongs after the last paragraph in black and before the last paragraph in red.  This is from the new declaration.  I don't think Archbishop Lefebvre would have said it this way. The bold type is my emphasis.

The Priestly Society of Saint Pius X intends to pursue its principal purpose, which is the priesthood as Our Lord Jesus Christ instituted it, and always to keep the priesthood focused on its very reason for existing: the holy sacrifice of the Mass. The Society is enlivened by the same sentiments as Saint Pius X, its patron saint:

"To eliminate all vain delusions for such, We say to them with emphasis that We do not wish to be, and with the Divine assistance never shall be aught before human society but the Minister of God, of whose authority We are the depository. The interests of God shall be Our interest, and for these We are resolved to spend all Our strength and Our very life. Hence, should anyone ask Us for a symbol as the expression of Our will, We will give this and no other: "To renew all things in Christ.'" (E supremi apostolatus, October 4, 1903.)

With the same faith and the same hope as this holy pope [WHAT? Pope Francis?], the Priestly Society of Saint Pius X, through its preaching and apostolate, proclaims Our Lord Jesus Christ’s dominion over all men and all nations, such that his rights and authority be acknowledged and venerated by all. For this reason the Society continues to work for the triumph of Christ the King and invites all souls of good will to join in this stirring supernatural endeavor.

Sorrowful and immaculate heart of Mary, pray for us who have recourse to thee.

It's clear to me that "this holy pope" refers to St. Pius X. Immediately before the phrase you bolded, the text referred to the society's patron and quoted from one of his encyclicals.

Ooooops.  It looks like I made a mistake.  Thank you.

Klas is right.  These fellows are clever enough to link at the bottom to the whole 1974 Declaration, judging, I suspect, that most people won't bother to read it.  So the juicier portions are simply indicated by "(...)"   Now no one can accuse the neo-sspx of abridging ++L's original docuмent.  So it is exactly what the hierarchy would want folks to believe about its critics, i.e. They are simply making a mountain out of a mole hill.

At the same time,  the SSPX are appeasing the Vatican hierarchy by not printing the entire declaration of the Archbishop. Francis could not be prouder.

Had the SSPX included the entire declaration, the road to union with Rome would have been delayed significantly.

Lord have mercy.