How do you deal with people who seem to lack common sense?

It's like...

One would think being an adult is easy.

One would think that racism is flat-out wrong.

One would think that every piece of action has consequences.

One would think that it doesn't take a genius to be nice and do the right thing.

One would think that everyone's parents taught them proper manners.

One would think that both guys and girls alike should respect each other.

One would think that it's not very cool to publicly shame someone on social media.

One would think many things are easily applicable to all human beings as it mostly borders along common sense...

Yet so many people fuck up, your friends and family included.

It can be especially disheartening and angering when you're just trying your best to be nice and positive, but someone else decides to give you a problem.

I know though, that everyone is different and we all have our different triggers.

But it really still begs to be asked: Why are some people so mean?

So tell me Steemians...

How do you deal with it?

Let me know in the comments.