I know we have our Marxist definition and all that, but it seems to be a really pervasive , everywhere I go. Some people I've talked to think for instance, all scientists are silver spooned and never worked a day in their life because they don't do construction, or whatever.
How do you argue with people like this? Can you?
I ask them if they get a wage aka sell their labor. Then follow that with: "If you lost your job, how long would you be able to pay for your living costs?"
So it's essentially just the if you work for a living, you are a worker.
I think it helps that I work with people who are all living examples of what happens when people can't sell their labor. I can always tell the libs that most of them are two paychecks away from that same position.