To debate that I would look at "association" first. Association is a broad term
and defined by context. The association Obama has with Wright is by his own
definition one of a mentor. That is a selective relationship, not circumstantial.
It implies that Wright represents a source of information Obama is interested
in gaining.
The second point is "guilt" [by association]. Here guilt is a prognosis on the
nature of the association. Since the association here is that of a mentor and
his student the ideological link is justified.

"Simple", in the terms of this point is far more a function of personal perception
that fact.