While he/she did not specify denominations, one can ask where ADSUM picked up the figure of 40,000 versions of Truth and see what this corresponds to, which is not hard to see. It is common for uninformed or deceptive Catholic to parrot (which ADSUM practices) the fallacious 33k figure, and out of which many extrapolate 40,000 Denominations:
We Need to Stop Saying That There Are 33,000 Protestant Denominations - https://m.ncregister.com/blog/scottericalt/we-need-to-stop-saying-that-there-are-33000-protestant-denominations
Protestantism—40,000 Denominations, 40,000 Points of Departure. Church Militant (https://www.youtube.com/watch?v=QEVZYRn8IA4)
40,000 Denominations Worldwide- The Ben Smart Blog https://thebensmartblog.com/2014/02/12/40000-denominations-worldwide-christianity-divided/
I do not know how many of you on here have used this or believe this, but can we stop the lie that there are 40,000 protestant denominations? It is fairly well known that it is not true, but there are still some people that use it trying to disprove protestantism. I am a catholic, and using the false statistic does more harm than good. It comes from World Christian Encyclopedia, and according to this source, the Catholic church has 242 denominations. We all know this is not true. - Catholic Answers; https://forums.catholic.com/t/40-000-denominations/468661:
And from right here on FR:
I have to laugh at NYer's claim that there's 40,000 denominations again. She claimed there were 33,000 in June of 2007, with "more springing up every day" in August 2007. Yet by November 2007, she'd dropped the number down to 20,000. Now in September of 2009, she's raised the number up to "30,000 and growing". And then two months later, she claimed she was going to post [40,000] but "chose to go more conservative". Up and down, up and down we go! Wheeee! - Alex Murphy, later banned apparently due opposition from Catholics.
And given the recourse of ADSUM to parrot refuted RC propaganda, it is easy to surmise that the figure of 40k versions of Truth flowed from the 40,000 denominations error, or was his/her means of conveying the same censure.
Regardless, the fact is that since most of what Catholics believe and practice has not been infallibly defined, including what all the infallible teachings are, and on what magisterial level the rest fall under, nor infallibly explained, neither an infallible interpretation of the Bible with its over 80k words, nor all of what oral tradition teaches, then there can be 40,000 versions of Truth even among Catholics.
Moreover, even as regards essentials you not only have Catholic schisms,from the EOS to the RadTrad SSPX (Society of St. Pius X) and the RadTrad SSPV (in honor of Pope St. Pius V, and a schism from a schism, though the status of the SSPX is another issue RCs debate) to those in informal schism by refusing to recognize Francis as pope, as well as multiple TradCath sects.
However, as regards core Truths, those who testify to most strongly esteeming Scripture as alone being the sure and sufficient supreme standard as the accurate and wholly inspired word of God, with its basic literal hermeneutic testify to being far more unified in polled core beliefs and values than overall those whom Rome counts as members in life and in death.
And thus the Prot. 33k+ denomination propaganda is also fallacious in this debate since who here is defending a Protestant church as the only true one, versus certain cardinal Truths that are most all held to by Bible Christians/aka fundamentalist evangelicals?
The Catholics can attack SS as the cause of the divisions, yet the most loosely dis-unified are those who do not hold to the fundamentalist esteem of Scripture, while the divisions they see are akin in principle to those of TradCaths, with divisions being primarily due to taking doctrine more seriously, and thus such typically have the most fervent debates, yet which groups also show the most unity in basics.
And rather than the vaunted "living magisterium" resolving any conflicts or disagreements within the Church, as ADSUM asserted, then V2 has been the cause of the modern RC divisions.
Oooppppssss.....
Sigh...
It used to be SO much simpler; when all we had to worry about were angels dancing on a pinhead.