Cofty,
I am with you and I am with some of the ideas of the 20th century schools, including the constructivists, for example. I believe Kant was the strongest voice of the idea that objectivity and science are human constructs (I hope I got that right). I agree, but regardless of who were the forerunners of constructivism, My point is that the way we do science and handle social interactions has worked pretty well so far. So, questioning our perception of reality without offering a better method is an effort into futility, especially considering the amazing discoveries and inventions that have not only improved the life of so many, but also are getting us closer to understanding the biggest mystery and the very source of our perception of reality, the human brain.