Actually, the Red Cross has an extremely minimal overhead and spends upwards of 90% of its take on actual charitable services, something you could have found out for yourself with literally five minutes of effort.
I'm curious to see if you want to come back and admit that you were severely misinformed, though!
I doubt he will. He was already shown the facts and, instead of admitting to having been mistaken, he went on a rant about how people are ridiculously gullible and humanity should be fucked, or something.