Like, some of us have to think we are free in order for us to accept the control, man!
More seriously, the "they have mind control guns" arguments have been around for a very long time. Before it was microwaves, it was radio. Before radio, it was voodoo magic. Etc.
It's an attempt to logic-bomb those of us more prone to questioning reality into questioning free will and whether or not the options in front of us are truly our choice. That is the 'real mind control.'