"Tom and Daisy might treat Gatsby in a despicable manner, but Gatsby is responsible for his own destruction." To what extent do u agree/disagree?To...

Concerning the issue you ask about in The Great
Gatsby, arguing absolutely, either way, is difficult.  The novel, like most
high quality, sophisticated fiction, is ambiguous.  The book isn't a good guy and bad
guy kind of book.  Characters, like actual people, are mixtures of good and bad traits
in the novel. 

Tom tells Wilson that Gatsby owns the car
that hits Myrtle.  Wilson kills Gatsby.  Tom is guilty.  But it's not that
simple. 

Tom likely doesn't know that Daisy was actually
driving the car.  Daisy doesn't confess to him.  Daisy guilty.  But it's not that
simple. 

Gatsby plays a part in Daisy not telling Tom, and
Gatsby certainly doesn't blame her.  He lurks outside of her house all night in order to
protect her from Tom.  He still loves her.  Is Gatsby guilty of his own
murder? 

One could go on and on in this way.  You could
argue that Wilson pulls the trigger, so he and he alone is responsible.  Tom and Daisy
certainly couldn't be charged with Gatsby's murder.  They didn't put Wilson up to
it. 

And Gatsby's illusion is Gatsby's illusion.  Is Daisy
supposed to lie and pretend that she never loved Tom just to fulfill Gatsby's
illusion? Gatsby tries to recapture a past that never was.  He is on a quest that is
doomed to fail.  Yet, does that mean that he causes his own
destruction? 

In short, I suggest that your question is
unanswerable.  I suggest that to answer your question is to simplify an ambiguous novel
that, in terms of its ambiguity, accurately reflects
life.

But, I know you have an assignment to do, so, if I
had to, I'd go with Gatsby causing his own downfall.  Though he, like others in the
novel, is a victim of Tom and Daisy, he is the foolish one who chases after a dream that
never was.  Daisy never loved him the way that he loves her.  And when it comes down to
it, he isn't satisfied with having Daisy love him now, in the book's present.  She does
love him and is ready to choose him.  But that isn't enough.  He has to maintain the
illusion that their love is something special, that it is never ending, and that Daisy
always loved him and never loved Tom.  As Daisy tells him:  he asks too
much. 

Gatsby causes his own downfall.  There, I've
perjured myself for you.  Hope it helps!