Velorution with echoes of Helix

Has there ever been an occasion when "I don't want to be called a racist when I say this" wouldn't be better replaced with either "I accept this is racist" or "I retract this because I realise it sounds racist which isn't wanted I want to say, and I will replace it with a better written version that isn't racist"?

(Or when following it up with Where did all that come from? doesn't sound disingenuous?)