Earlier quoted context omitted.
I'd refuse to touch your phone and insult you for the offer. If you don't have a paper menu the question of me giving you money is already off the table; the food is forgotten and my new mission in your restaurant is to punish you with my vindictive attitude. If enough waitresses complain about obnoxious boomers giving them grief, I think the business owner will eventually wisen up.
You don't know how the restaurant business works, for one thing. For another, acting like an asshole to waitstaff just makes you look like an asshole, and gratifying yourself in public over your supposedly principled stand in acting like an asshole doubly so. QR code links to menus are bad, sure. I'd still rather eat at ten places that have those than one place that has you.
If my making a scene makes other customers upset, then it's working. I know businesses hate it when people do this, and that's why I know it's an effective tactic. The whole point of the protest is to sabotage the business by making everybody else in the room upset.