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You’re not wrong, but your aggressive wording will surely alienate anyone who otherwise would’ve had a chance of learning something new or changing their mind. People don’t generally respond well to snark nor a condescending tone.
And this is a real issue, because companies and fascists are good at telling relatable stories to win people to their side. If we want to have any chance at fighting back, we must utilize the same tools they’re using, instead of calling people stupid and thus driving them away.
There’s no big reason why remapping couldn’t be done in a way that doesn’t require actively running software on the host machine. QMK, the open source firmware for keyboards has had this for years. You can update your keymap with an online editor, but once it’s flashed, your mappings will be remembered regardless of which computer/phone/whatever you use the keyboard with - without having to run any software besides the OS on the host.