hankchinaski parent
I personally trust more Google and apple than a spider web of random developers and potential malwares that might cause just security issues in the long run and reduce the overall security of the platform and ecosystem
Nothing is stopping you from using Messages by Google or Apple's Messages app if you prefer. Fear, uncertainty, and doubt over unnamed "security issues" is not a good reason to prevent other developers from creating clients for RCS, which is intended to be an open protocol to replace SMS and MMS, and not a closed "ecosystem" consisting of 2 apps from 2 of the largest tech companies.