Why is it Cool to be Rude and Arrogant??

unfortunately being too nice gets you nowhere

Not necessarily.

In my experience, no. I try curbing being nice sometimes but it's my personality so I don't want to change it.
What makes you think that?

It depends one the situation too. But one should not be rude/harsh to others. I personally have faced problems too because of being too nice to some people, but I believe it depends on the situation and also the person you are dealing with.

unfortunately being too nice gets you nowhere

I disagree. It's clearly far cooler to be in touch with your emotional side, believe in mythologies like 'the patriarchy', and adopt the only acceptable standard of behaviour in modern society: femininity.

I mean, you have a problem, clearly, with everyone who isn't conforming to a feminine standard of behaviour, so really, they're the 'out group', eh? How can you make them conform? Perhaps string them up by the neck and lynch them for failing to pay homage to the religion of women?

Was that rude and arrogant enough for you?

Saying you hate feminists would be an understatement.

My thoughts entirely Warrior Gene.

One should always be chivalrous, much like myself

It's also pathological. In my experience, 'niceness' is best characterised by people who simply believe nothing is perfect, and, until it's perfect, we must adopt the most extreme attitudes and behaviours to make everyone conform to their perceived standard of perfection.

You can't micro manage billions of people. Long story short: people only care about themselves, irrespective of how much they may claim otherwise. Even 'nice' people are needy people, extending the arm of friendship for no other reason that it helps bolster their own self-esteem.

Humanity = self-interested. As soon as you all accept this, you'll be infinitely happier.