I took this email a few ways (in addition to the initial view that inspires said shaking).

We're a population so accustomed to these security measures that we identify them as being security measures unquestioningly. From picking up stuff at Lowe's to getting carded at Walmart, whatever it is, Americans (I would think) already know deep down that people who oppose these very things when it comes to our elections are absolutely full of it. It's an argument based purely in accusation (i.e., that secure elections are racist, of course).

Is being carded for alcohol, lottery tickets, or cigarettes racist? What about biometric scanners? What about pin codes, etc. on our personal or work devices?