Beyond a few thousand years where we have tree ring data, regarding carbon dating as accurate is simply an act of faith depending on the ASSUMPTION that the ratio of C14 in the atmosphere through time has been the same as as it is today.
Regarding radiological dating methods, have you examined the ASSUMPTIONS connected with them?
You mean that radioactive elements decay at a set rate? Do you realize the implications in claiming (albeit, backhandedly) that radioactive elements decayed far more rapidly in the past? Peruse the following link (from The Ultimate Creation vs. Evolution Resource):
Radiometric Dating: A Christian Perspective {Dr. Roger C. Wiens}