Whatsapp is more used than SMS and all other apps combined. Is SMS controlled by one company? Whatsapp made Meta almost a billion dollars last year. Yet they're out here sending legal threats to OSS devs and devs of 3rd party clients. Are there 3rd party clients for SMS? Yes. Then why shouldn't there be 3rd party clients for Whatsapp? Zucks failed experiments on metaverse is resulting in him trying to aggressively monetise the golden goose.