OK POGS I will have another go although you haven't answered the bit I did understand and asked you about. Do you think that such people do not exist or do you think it is unreasonable to call them to account for their extreme views because the very description "Little Englander" is used to refer to an English person?
Now to that, dare I say, rather clunky sentence.
I remain affirmed in my mind that the 'context' of when,where and how it is used is the predominant factor as to it's usage and no explanation is required it is self evident.
I remain affirmed - perhaps this means - I remain publicly showing support for or just - I still believe
in my mind - in my mind, (?) not sure about that. It seems a little tautological as we have already shown it is your view, however ...
that the context - well on it's own that does make sense ...
of when, where and how it is used - err ... isn't that tautological again. Wouldn't context have sufficed?
is the predominant factor - most important ... main influence?
as to it's usage - now I think this is where the sentence begins to lose the plot
and no explanation is required - totally understandable on it own
it is self evident - more tautology as you have already said "no explanation is required^
What you may mean is "I still believe the context of the word is the main influence on" ... on what exactly isn't said ... perhaps we will never know 
I would normally never, ever, criticise how someone on the forum writes or the words they use but this seems to be the game of the last 24 hours so I felt decoding this might well be acceptable.