Couldn't one just argue the same about Apple? I mean, if you don't like their lock-in, then just don't use it.
I don't want to use WhatsApp, but it's a quasi monopoly in messaging in many countries and thei're not opening up their APIs for others. We should force them too, shouldn't we?
I've used messenger in the past, after that i've just convinced family/friends to install telegram and chat there. Now I'm thinking abt moving to Signal, so imo, it's not that a big deal, users can migrate/install alternatives. If ppl care, they'll install an app to communicate with you, if they don't, well...
Were you also able to convince your employer, repairmen, local communities to leave WhatsApp? I am among the least connected people among various circles I am in, yet I'm not able to leave WhatsApp.