That’s shortsighted - most app developers will likely end up using one of a few payment providers anyway, and it will put some pressure on Apple to lower their fees. I don’t expect it will be enough, but it’s a start towards a more competitive and balanced market.
Your’re mixing market cap and profits, but that’s the wrong comparison anyway.
There’s no reason Kodak couldn’t invest in sensor development while keeping film production going - their expertise in colour and image processing would’ve given them a major advantage on the sensor market.
Nikon was never a film company so they make for a poor comparison anyway, their expertise is in lenses. Fujifilm is a more direct competitor and a better match, they pioneered digital cameras and diversified their business while still producing film and as a result are still worth 22b today.