You said
Do you have any hard figures to support your claim?
According to
Wikipedia:
" It [135 format] quickly grew in popularity, surpassing 120 film by the late 1960s to become the most popular photographic film size."
Now Wikipedia could be wrong about this, but your claims about "unspeakable numbers" have even less weight, AFAIC, unless you corroborate them with some hard numbers / evidence.
The fact is there are no figures available for worldwide sales of rollfilm cameras in these early days and expecting sales figures from over 100 years ago is never going to be realised. You can win any argument by demanding that figures are produced where none exist before you believe whats staring you in the face.
Some things have to be accepted, they are self evident. We can make some assumptions and have a reasonable expectation that we are correct.
For example. The only camera formats available before 1930 were plate cameras, used by professionals. and roll film cameras used by everyone else. I don't need to prove that larger formats were preferred to 35mm before 1930, because 35mm hadn't been invented yet. For 100 years larger format cameras outsold 35mm cameras, that's because 35mm cameras didn't exist, and couldn't be purchased, and it took another 30 years before 35mm cameras took over from roll film.
From 1850 to 1930 the choice was between huge plate cameras or large roll film cameras. All cameras sold worldwide were larger than 35mm. That's a fact.
And between 1930 and 1960 35mm cameras were a niche sales area, desirable yes in the leica offerings, but sales were low. 35mm sales picked up during the Vietnam war when the Nikon F demonstrated its superiority and became the favourite of professionals, photojournalists and amateurs alike.
I know, I lived through it. I started taking photographs on a roll film camera in 1957. 35mm cameras were largely absent from society,, it was rollfilm rollfilm rollfilm.
I didn't see a 35mm camera until 1963, and they only became widely used in the mid to late 1960s Your Wikipedia quote supports entirely what I said earlier, I said 35mm took over from rollfilm after 1965, your quote says 35mm took over from rollfilm by the late 1960s.
I even said it took over earlier than Wikipedia did, so how can you say im wrong or disagreeing with them. And by 2000 35mm was dying, digital ruled, with APSc and 8mm sensor point and shoots
I don't deny that 35mm cameras were the peoples choice for 30 years until digital took over, but that's only 30 years out of 180 years. For the other 150 years larger formats ruled.