My wife and I cancelled our phone services a while back to save money since we rarely if ever have to call anyone and just use messaging to keep in touch with each other and friends. What are people like us supposed to do? I do have a Google voice number, but I noticed one or two places recently that won't accept that anymore.
If there are enough people like you, I'm sure they'll find some way to accommodate you. Maybe they will accept a scan of your passport or ask for a bank account number or some other piece of data that makes it at least a tiny bit harder to open an account.
One thing I'm sure of, uploading a scan of my passport to every website is not an appealing thought. Besides the inconvenience, do I really want my passport spread around on dozens/hundreds of different high-value servers run by who-knows-who?