Well, ...
on one side I understand the need that people come to see that not all Caldari are "jackbooted thugs" (though I don't see what's wrong with jackboots (; ). I sometimes have the same longing in regard to Amarr, as I put some effort in to fighting the view of Amarr as brainless, fanatic, nazi Space-Katholics. After all, per PF the Amarr are highly educated and not at all brainless or anti-science and all that shit one gets thrown at all day long.
In the end, though, I think one has to accept that some people just don't want to change their character's view. Sometimes, even, they have reason to change their character's views in the opposite direction and give him an even more uncompromising view of the faction that one tries to portray in a more balanced or even human and sympathetic way. It happens, inevitably and there is nothing one can do about it, because one can't control the (re-)actions of other people.
I think one shouldn't make ones motivation to play the game dependent on whether ones own faction is generally perceived in a good light. I rather aim for small things, if I convince a single non-Amarr char that 'not all Amarr are like that', that's already a huge success. If I am able to improve relations with one Caldari, I won't mind the one that is managing to interpret anything an Amarrian does as negative for the Caldari people and the universe at large. And I don't give much about how CCP portrays the Amarr as how that is received is anyhow another matter. Haters gonna hate.
Not worrying about the haters keeps the fun in the game.