I know this is all hypothetical -- I realize that God prepared +ABL for the mission His Divine Providence had planned for him, which was from the 60's at Vatican II itself until his death in 1991.
But indulge me for a moment --
Things are worse than they have ever been, INCLUDING the past 50 years of Crisis.
With regards to the Crisis in the Church and Tradition, in most ways, the 70's and 80's were "the good old days" compared to today.
Just look at the first 10 years of the SSPX, vs. the first 10 years of the Resistance -- you'll see what I mean. SAME DOCTRINAL POSITION. But +ABL was living on EASY MODE compared to Bishop Williamson and the other Resistance bishops.
The only single advantage -- a lifejacket, if you will -- is the existence of the Internet now. Which is both a blessing and a curse, of course. Ebay makes it easy to get equipment for new chapels -- but it also means that closing churches will sell stuff on eBay now instead of donating it to a poor chapel. The Internet makes it easy to advertise and find new parishioners -- but you also get errors and proselytizing from rival groups, taking away parishioners from you. So the Internet giveth, and the Internet taketh away -- as it were.
But here's the clincher:
Imagine if +ABL had to compete with an entrenched FSSP with 550 priests and hundreds of chapels, offering the "Latin Mass" in union with Rome, usually less than 1 hour from most people? The SSPX would never have taken off.