Earlier quoted context omitted.
> I suspect we as a society need new legislation to deal with these sort of issues. Why not ban targeted advertising altogether?
Because it has value, both to the advertiser and to the target, compared to un-targeted advertising. Advertising is an attempt to transfer information. Targeted ads means that the information is more likely to be relevant, whatever its other downsides. Let's not throw out that baby with the bath water.
Targeted advertising is like the difference between spam and spear phising. The person being advertised to rarely (if ever) benefits.