Regardless, the end effect on the viewers (both willing and unwilling) is that they have not seen the work. They may in fact have a completely different understanding of the film or show than someone who actually has seen the work. A morally ambiguous character becomes wholly righteous. A villain becomes the hero. Violent acts cease to have a consequence of gore, perhaps of pain or death. Romance no longer leads to sex. Dialogue cut for swearing completely changes the perception of a character, the story, and the world.
In the end you have seen something worse than nothing at all--a cartoon caricature of what the creators intended. You have wasted your own time, perverted the aims of the artists behind the work, and done your children a disservice.