While it's essential to acknowledge the impact of personal actions on family and responsibilities, it's also important to recognize the distinction between an individual's personal life and their professional or philosophical contributions.

Watts indeed had personal shortcomings, as many do -- judging his entire body of work based on his personal life can be limiting and narrow-minded.

It is fitting that Siddharta left his wife and infant for his own spiritual quest, though.

I don’t know to what extent he was a messenger for Buddhism. But in some sects you aren’t allowed to teach the Buddhadharma without permission. So in that sense, “personifying” what you teach would be relevant.

We are both looking from the outside in, we can't know what is going through someones minds, what is happening to them in their situation.

To enforce social and moral norms on something we can't fully understand is questionable. Judging others is all about enforcing societal-defined morals onto others.

You choose to enfore those morals, I choose to reserve judgement.