I think it's just a variant on the all-time classic, "I'm not a racist, but...". People try to pre-empt the obvious response (in this case, "you are being unch

I think it's just a variant on the all-time classic, "I'm not a racist, but...". People try to pre-empt the obvious response (in this case, "you are being uncharitable") with a basic retort ("I'm just trying to get this straight")