Harvesting Clones: Never Let Me Go the movie

The following passage from Never Let Me Go explains how society came to accept the creation and harvesting of clones.  It is my favorite passage from the novel because it illustrates just how slippery the slope is. Just how easy it is to label a human life as "not human" to satisfy a perceived need.  Here a woman explains to a clone how it was she came to be and why her lot in life is what it is:

After the great war, in the early fifties, when the great breakthroughs in science followed one after the other so rapidly, there wasn't time to take stock, to ask sensible questions.  Suddenly there were all these new possibilities laid before us, all these ways to cure so many previously incurable conditions.  This is what the world noticed the most, wanted the most.  And for a long time, people preferred to believe these organs appeared from nowhere, or at most that they grew in a kind of vacuum. 

But by the time people came to consider...whether you should have been brought into existence at all, well by then it was too late.  There was no way to reverse the process.  How can you ask a world that has come to regard cancer as curable, how can you ask such a world to put away that cure, to go back to the dark days? 

There was no going back.  However uncomfortable people were about your existence, their overwhelming concern was that their own children, their spouses, their parents, their friends, did not die from cancer, motor neurone disease, heart disease.  So for a long time you were kept in the shadows, and people did their best not to think about you.  And if they did, they tried to convince themselves you weren't really like us.  That you weren't really human, so it didn't matter. [my emphasis]

Never Let Me Go is now a movie.  Here is the trailer.  I really hope they left the above passage intact because it is a truth that everyone needs to hear.