Of course it is about marketshare. The more you have, the more you can make things hard for your competitors. The less you have, the more you're the weird one with the odd platform.
> I am with a friend in a place with no Internet access
That's a vanishingly rare situation not worthy of legislation, IMO.
In 2003 I bought a PowerBook. It was the only commercially available laptop that could be bought without buying a Windows license. Microsoft had put any competitors out of business by that point and OEMs weren’t ready to sell Linux laptops. Apple only existed because Microsoft injected them with cash to show they had a competitor.
Get a USB drive.
Feem, but I'm interested to learn more about this contrived example where phones don't have internet access and so can't use SHAREit, Send Anywhere, or any number of other solutions.
If I’m allowed to pre-download software before encountering your scenario, running a web server or an app that serves FTP or other server types hosting files is trivial on either OS. iOS may require shuffling the video file into an app sandbox first.
I am with a friend in a place with no Internet access. They have an iPhone. I have an Android phone. We don't have any cables. My friend took a video and I would like them to send me the video right now over Wifi.
I think there are some ways I could solve it, but I don't think there are any ways I could solve it that would be reliable for nontechnical users (and even for me it's hard.) This isn't an accident, Apple is abusing their control over iOS to make this sort of thing impossible. And it's worse than anything Microsoft ever did. Apple is actively standing in my way, even though I don't own any iOS devices.