This has not yet been proven to be a direct result of genetic makeup. If it has, please provide a link. A quick review of the links that Google provides through the various health organizations seem to show significant debate on this, but no consensus on whether this is fiction or fact.
Again, a Google search reveals that many studies do show that "addiction" is likely passed down, but it seems that all of us have this built in. It's actually a good thing in most cases ("like a certain food, search for it so can be eaten again"). Whether or not it is stronger in some than others seems to be still under study.
Interesting choice of words. I guess I must agree that it is a
fact that you
potentially pass genetic material on to your descendants that may cause them to be more apt to having uncontrollable addictions.
That's like saying it's a fact that I can potentially fly by flapping my arms.
So, it's also a fact that we
potentially do not pass anything that matters genetically and why some people have addiction problems and some don't.
I agree with everything you state here. But, it doesn't make the statement, "An addict is weak willed" incorrect or necessarily fiction. It's simply unknown at this time what exactly plays a role in addictive behavior.
As of today, as far as I know, it is a
fact that addictive behavior could
potentially be mostly a result of a weak will.