Think about this carefully:
Is the SSPX (in all its chapels) supposed to be a disinterested outpost of the One True Church, or a private club set up for its own benefit?
This is likely to evince an emotional reaction, regardless of your position. But let's think about it logically. There are only TWO options:
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A) The SSPX is just a branch of the One True Church, existing only for the benefit of the Church and Her members.
If this were the case, the SSPX would be passive and disinterested about where its parishioners attended Mass, as long as they were keeping the Faith. There would be nothing to legitimately worry about, as long as each parishioner attended a chapel with the Traditional Catholic Mass. Freedom would be high, as the SSPX wouldn't have any selfishness or jealousy issues -- she would even go so far as to completely disband/liquidate herself if it could somehow mean the salvation of every soul.
It's simple. If the SSPX's one mission were "The Salvation of Souls" she would be perfectly content as long as souls were being saved.
The SSPX would yearn for the good of each soul, which would include teaching them freely about the Crisis, the Catechism and how the Faith relates to the layman's daily life in the world.
It would realize that, as strong as each priest's zeal might be, it can't impose on the free will of any person. Each person is given free will by God. The SSPX would mince no words in reminding Catholics of their obligations -- but then it would peacefully leave it up to each person to follow or reject God's will. It would strongly teach and remonstrate, but would stop short of becoming unquiet of soul and attempting to force/bully a given parishioner.
A priest is not guilty as long as he preaches the Faith and does his best. It is not his responsibility to deliver "results". He must respect the Free Will that God gave each man and woman.
Think: The year is 1940. Does your priest care where you go to Mass, as long as you stayed Catholic? Yes, you had an official Parish based on your home's location. That's where your Church records (Baptism, Marriage, etc.) would be kept. But if you consistently went to a different parish, you wouldn't be castigated, bullied, denied communion, etc.
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B) The SSPX is a club/cult/business of interest for a group of individuals, intended to benefit them and perhaps to make it look good, to offer the Traditional Mass and Sacraments, and make a good show where possible.
If this were the case, the SSPX would be jealous of each "customer" or parishioner. Given the choice between Joe Parishioner attending the SSPX chapel or an equally orthodox chapel elsewhere (say, in the Resistance), the priests of the SSPX would vehemently insist on the former, even stepping beyond the bounds of their authority. Each parishioner is looked on as primarily "theirs" and a source of numbers/prestige/revenue. Freedom would be low; suspicion, intrigue, and spying would be high. The question of "what is good for this or that parishioner" would be secondary to the good of the SSPX as a whole. The SSPX would seem to exist for its own sake.
Each priest would feel obligated to deliver "results", because when it comes to Excel spreadsheets and financial reports, there are no other results that matter! Money is only for this world. "If you don't get the parishioners, we don't get the money." Even if a parishioner is saving his soul just fine at another chapel, the money is still gone. So bullying, strong-arm tactics, intimidation, propaganda are all fair game and tempting for individual priests to use.
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Which of these two lines up with the reality?