Huh? Don’t WhatsApp, Signal, etc. work in the USA? Or does anybody pay for them?
I would love to not use Discord, but I'd lose messaging with about half my social circle.
Next you can sue designer clothing companies for not handing their products out for free to poor teens.
Using any other app just adds friction - obviously your best friend isn't going to stop talking to you because of it but weaker relationships might not survive.
Yes --- unless they've been anointed with a special "friends and family" exemption offered in select cases.
WhatsApp Business is a subscription product. The fruit deity demands 30% tribute for this from any ordinary developer.