Have you ever read those stories in the newspaper: about a female having acid thrown in her face, or being bricked and kicked in the face: just because they were pretty and the attackers boyfriend eyed them up, or they had an argument with the less-attractive female, and it was a revenge attack? This happened a lot in London: when I was a teen, but now with CCTV everywhere: they hardly happen now-a-days.
That is at the worst end of the scale - scarring a beautiful face for life: to ‘teach’ them a lesson / this happens to men too, btw. The other end of the scale involves: alienation, bullying, not being hired for a job: even if they are the best candidate, being over-looked for promotion: even if ready for it, being hounded out of their workplace, being hounded out of a bar/club, shall I go on…
My stunning young neighbour: a tall, pretty blonde: is always having fights and arguments with people, and she is now finding it very wearing on herself - she has now taken my advice, and just ignores the instigators: who take pleasure in making her life miserable (she is much happier now).
Shall I talk to trouble-making peeps: who wrangle an argument out of me: so that they can then attack me, and say that I deserved it for berating their beratements? This did start to happen when I went to college: I didn’t like it, as it was a waste of my time/energy, and i just didn’t get involved…
I guess it’s self-preservation 
The ‘corner’ you so seem to think I am in: is not of my making - I know where I’m at in society: is this the corner you mean? I go to the best parts of town: where a good time is had by all, and no-one bullies you, or they fear the might of the whole…
I would apply the same stance for any peeps being oppressed/bullied/set upon/etc: due to racism, prejudice, jealousy, whatever: if the opressor is looking to cause that individual harm.
…there is reasoning behind my decisions, you see: and not just unfounded bigotry towards others…