family thinks my job is easy (thoughts?)

I (30F) am tenure track faculty at an R1 university, and I come from a rural, lower class background.

When I talk to my family, they often make comments about how I don't have a "real job" or I have an "easy job" and it "must be nice to not have to work."

They know I work most weekends, during every break (I'm trying to stop), and have struggled with my mental health from the workload. So it sucks that they make these comments.

I thought it was a strictly class thing, but my older brother and sister "made it out" of our old lifestyle before me. They each make 2-3x my income in their corporate jobs, but no one ever seems to say similar comments to them.

Any thoughts about they do this? Or how I should respond?