Rubbish. Numerous union members have pension plans which own stock. If they are bourgeoisie, then the definition loses all meaning.
If you work all your life at a modest standard of living, accumulating modest wealth, you are not bourgeoisie by any sensible definition.
I have a friend who invented some little gadget that made him rich at the age of 40 or so. He has retired now, in his early 50's. He's a legitimate candidate for bourgeoisie.
So relax, you're still among the wretched of the earth.
Cheers, MBS