Shocking though it may seem, we do not judge a person by the actions of his/her Father, Mother, Brother.
Which seems to be your thoughts with regard to Jeb Bush.
I might have added that any President is elected as such by the US Electorate, but plainly this is no longer true.
Presidents and Politicians are elected by those who perform the service of 'Image makers'.
In effect the US Electorate elect an Image.
Unfortunately we then have to suffer the consequences of our own voting selections.
I believe the days when we as thinking reasoning responsible people, able to discern between those who would serve us as opposed to those that serve themselves, has long vanished.