My non-political normative belief is that unions should represent the interests of their members in their capacity as an employee working under the union.
Stopping employers from spying on employees would definitely fall under this description. Again, I just haven't seen any tech unionization efforts in the US that legitimately seem to care about workers instead of using them as a pretense to accumulate power towards some other end.
Well, I do agree they should represent their members' interests. I will aver that fighting alongside your fellow workers builds class consciousness and progressive values, but that's up to you and your colleagues.
Stopping employers from spying on employees would definitely fall under this description. Again, I just haven't seen any tech unionization efforts in the US that legitimately seem to care about workers instead of using them as a pretense to accumulate power towards some other end.