So they are going into the spam folder. Then I do not see what you consider wrong with your email experince. Everything seems to be working as expected. It is well known that 99% of emails out there are spam. As long as they are being properly caught and filtered, what's wrong?

Regarding messaging STOP to texts: I have done it where the sender sent me legitimate promotional materials because I had earlier established a customer relationship with them. But when I got tired of the texts, I texted STOP. I also sometimes texted STOP to uninvited texts. Each time, the marketer respected the STOP and I never heard from them again.