I'm sorry you experienced that. I've worked for a few big organizations and find that each of them have pockets of good and pockets of bad. I wouldn't exclude all large/bureaucratic places based on that one experience alone. I suggest that if you don't want to work for any kind of bureaucratic organization, do it for other reasons. Maybe reasons more along the lines of "you like owning a whole stack," "you enjoy wearing many hats," or "you like knowing everyone in a small, tightly-knit organization."