It is only moot to those of your point of view; not the left who have a good argument.
Let me know when the left gets a good argument, I have yet to see one.
The point is that involuntary deductions happen; it is arbitrary and capricious to Only have a problem with union dues.
It is arbitrary and capricious to force a business to go to the expense of withholding and then cutting a check to a union. Especially when the business has fiduciary responsibility to either the union or the employee.
Why Only a problem with unions? The point is that involuntary deductions happen; it is arbitrary and capricious to Only have a problem with union dues.
Your argument is wrong as not many have problems with just unions but ALL deductions, so it is not arbitrary or capricious, I know you are hung up on the two words but they don't apply. Several posters have already stated the issue with all deductions.