TSA can treat me as a customer, citizen, client, or anything else. All of which doesn't change their ACTIONS which are hugely invasive and in terms of Backscatter might be bad for your health.
I have indeed met some very friendly TSOs but yet still didn't feel comfortable about taking my shoes off, having them look though my bag, pollute food with radiation, put radiation into my body though cuts, look at me naked, or touch me from head to toe.