Wouldn't an example be a job that requires it? Are you attempting a meta comment, and really mean something like "anyone can quit a job that requires social media usage"?

They're trying to be unique and cool by denouncing the use of social media

No, I am not.

If you do not want to use or work with social media, then don't. What's wrong with that approach?

Your statement does not take into account related factors, e.g. you have a job you like and need, but the job changed to require social media use; you love and help a remote family member who prefers using social media to stay in touch, etc.

In some similar statements, e.g. "If you don't want to be in car accidents, then don't be in them" the logical flaw is clear: Prevention involves a number of steps and assessments, skill, and some luck. Changing it to say "If you are concerned about car accidents, stay out of cars" would be equally problematic.