And all my colleagues that whole heartily agree, just to go 'but i use it ...', are not much different from smokers & day traders that think they are the exception.
Would you also say that any message worth sending is worth writing by hand and mailing via the postal service, instead of emailing? And if you tried to replace your work use of email (or Slack etc.) with handwritten letters, what do you think would happen? That’s essentially equivalent to the position you’re taking.