One of the most general reasons that so many people tend to
become confused and erroneously refer to the "Mixed"-raced
(i.e. "multi"-racial) "Ethnic" grouping of people currently
mis-nomered as `African-Americans' (AAs) -- as being 'Black'-raced
("mono"-racial) is because back in the 1960's the `Black Power'
(i.e. pan-Africanism) movement took over and essentially replaced
the largely successful 'Civil Rights' movement and many of the
younger AAs began to adhere to a socio-political "identification"
known then as `pan-Africanism' (which was simply
labeled as `black', for short -- sort of like the labels
of the 'green' and the 'orange' in Northern Ireland).
Once the leaders of the 'Black Power' movement of the late
1960's / and the early 1970's, a number of people who are
of the 'African-American'(AA) "multi"-racial ETHNIC grouping
... began to refer to themselves as 'black' (in reference
to their `political-identification',not their `racial-makeup')
the largely culturally-illiterate media pounced on the idea
and made it `politically-correct' (`required', in fact) to refer
to this group of people as `black' rather than under the term
which most people (including the majority of those who belonged
to the ethncitiy) called them which was `colored' (in reference
to their well-known and largely `multi'-racial lineage.)
Again -- it should be noted that the proclamation these
`black power'-chanting young people were quoting was regards
to the idea of a `pan-African' socio-political "Identification"
and NOT in regards to a demand for a new 'racial' classification.
One's socio-political "identity" DOES NOT
change one's 'racial admixture lineage'.
It is wisest to try to not mistake a socio-political
"identication" for being a racial "classification".
In fact, many of those AAs who shouted the loudest and at the top of
their lungs the motto:
'Say it loud, I'm 'black' and I'm proud'...
would, if asked, had to have been the very first to have to
openly admit that their familial and ethnic lineage was actually
a multi-generational "Multi"-Racial Admixture of Black-Amerindian
and White and that they were clearly "Multiracial/Mixed"
individuals who were declaring their `politics', not their
racial `lineage' (i.e. Malcolm Little / a.k.a. `Malcolm X').
Again, the term `black', ) that these young people were
speaking of when they referred to themselves as being
'black' people, was essentially a socio-political
"identification" (of pan-Africanism) and not a
request or demand for a new racial 'classification'.
Thanks ---- essentially to the American mass-media and certain
of the political activists and self-proclaimed/appointed `leaders'
and their erroneous use of the term `black' to describe the AAs,
as well as their tendency to also erroneously refer to all "black"
citizens in the United States as being an AA ---- most people
are under the false impression that the AAs are both a
`racial' grouping and are also largely a `mono-racial'
grouping when, in fact, they are neither.
Although the AAs can generally feel free to `identify' as being
either mono-racial or multi-racial, it should always be kept in
mind that a person who is of the AA `ethnicity' is not the same
neither 'lineage-wise' nor 'historical-experience wise') as
someone who just happens to be an American of `black'-"race".
To confuse the largely (+70%) `multi'-racial `Ethnic' group
known (and currently mis-nomered) as `African-American'
with the `mono'-racial `Race' group known as `Black-American'
--- simply because they are both commonly referred to as `black'
. is as erroneous as confusing `Amerindians' (American Indians)
with `Indian-American' (those from East India) --- simply
because they are both commonly referred to as `Indian'.