I'll have to watch the video - or does this contravene option 4 in the poll?
The other three options are effectively the same - go out and buy more film. I acknowledge that I am not going to be of much use in keeping film going as:
1. I genuinely don't get on with colour. I've never learned how to handle colours - or perhaps I should say I've never learned how to control colours in the same way that I can control black and white to give an image that pleases me. I find the extra variables too difficult to control.
2. I don't like the technical quality that goes with 35mm film, given that I like to be able to produce prints at at least 12x16/A3 size.
3. I'll use 120 if I want to travel light, or photograph quickly.
4. By far my favourite formats are large format, with a preference for 5x7 for general photography, and 10x8 otherwise. I'm finding 5x4 a little small now...
Given that LF requires a little more set up time per image, I'm not going to find it easy to increase how much film I use.
I do however accept that given the costs inherent in film production, and the machinery needed to produce a mass produced product, there is a minimum usage below which film could only be produced at a loss. Makers may be happy to accept smaller profits because they genuinely love film, but it's always on the cards that smaller sales volumes will make continuation impossible (say, when an expensive machine reaches end of life and can't be repaired).
Ultimately, we may go back to the origins of photography, and manufacture our own plates, either wet or dry.
I haven't voted, because I can't see any essential difference between the first three options.