Grammar

KhoshtipManthe black people

Don't use "the" because you are speaking generally and therefore, not mentioning any particular black people.

Thanks for the answers. I need more replies about that.

KhoshtipManBravo America for your democracy; your police kills the black people (because they are black) each one after another just like wild dogs when they attack and eat defenceless deer alive.

I would rephrase thus:

Bravo, America, for your democracy; your police kill black people one after another because they are black, just like wil

CalifJimI'm not convinced that the wild-dogs-and-deer simile is very effective.

And what would you you say?

My opinion:
The black people [Optional using of the]
each one after [correct but it may be (more) natural to omit each]
I also choose defenceless because I prefer BrE

KhoshtipManThe black people [Optional using of the]

As you are presumably talking about black people in general, the use of the definite article is not natural.

KhoshtipManeach one after [correct but it may be (more) natural to omit each]

... each one after ... is neither natural nor correct.

KhoshtipMan CalifJimI'm not convinced that the wild-dogs-and-deer simile is very effective.And what would you you say?

I would leave it out and not say "like" anything.

CJ

Thanks guys for the answers.

CalifJimI would leave it out and not say "like" anything.

Unfortunately, what I said is true. And I added that extra part because I saw a video clip that two polices killed a defenceless black man without any reason (except for being racist). And this a story that we see and hear about almost each week in America.

KhoshtipManAnd I added that extra part because I saw a video clip that two polices killed a defenceless black man

I saw a video clip in which two police officers killed ..