riddle - Could you *be* any more metaphorical?

The following, apparently random list of seemingly random nonsense is a metaphorical interpretation of something that exists in the real world. What is it? As always, go line by line. But once you figure it out, you'll have everything you need to write the solution.

The current endeavor is not a genre, it is mass murder

Your were torn from the respirator

You were brought up to date

Like half of a starlet or a whole amputee

You wore vestments

And played Dracula

You scurry down the lane

Defenseless, unhidden

Concealed canine hunters for profit

The statues pursue you with murderous intent

I shall pacify an acquaintance

Hasten hither, my child

Veni, vidi, cessavitque

Take leave of the flora

Lest you fall ill 'mongst the murk

They're mutts, bejeweled

John Samhain is, at present, a snow leopard

Who dwells above a vault

Lift in disrepair, hemp brings him down

So he prowls the macadam with Cheetah

A tartlet nears with The Specials

She wears no grin, but Salvador's accessory

Nostalgic, chocolate chip cookies

Destroyed and quadriplegic, yet the boxers are unwavering

Annus belbus in the dog days of summer

Strut next to the beach; hasten to the trench

"In the Year 2525", a hipster goes solo

Pain is inevitable, try to live through the night

Minor hint:

Rather Orwellian, isn't it?

Enormous, gigantic, probably ruins everything hint:

The riddle's solution is best friend to both sexes.

Answer

This is an interpretation of

The David Bowie song, Diamond Dogs (btw the probably ruins everything hint was the key) https://en.wikipedia.org/wiki/Diamond_Dogs_(song).

The current endeavor is not a genre, it is mass murder

This ain't rock'n'roll. This is genocide!

Your were torn from the respirator

You were brought up to date

As they pulled you out of the oxygen tent
You asked for the latest party

Like half of a starlet or a whole amputee

You wore vestments

And played Dracula

With your silicone hump and your ten inch stump, Dressed like a priest you was, Todd Browning's freak you was

(Tod Browning directed the 1931 Dracula film with Bela Lugosi
https://en.wikipedia.org/wiki/Dracula_(1931_English-language_film))

You scurry down the lane

Defenseless, unhidden

Concealed canine hunters for profit

Crawling down the alley on your hands and knee, I'm sure you're not protected, for it's plain to see, The diamond dogs are poachers and they hide behind trees

The statues pursue you with murderous intent

Hunt you to the ground they will, mannequins with kill appeal

I shall pacify an acquaintance

Hasten hither, my child

I'll keep a friend serene

Oh baby, come unto me

Veni, vidi, cessavitque

Take leave of the flora

Lest you fall ill 'mongst the murk

They're mutts, bejeweled

Well, she's come, been and gone.
Come out of the garden, baby
You'll catch your death in the fog

Young girl, they call them the Diamond Dogs

John Samhain is, at present, a snow leopard

Who dwells above a vault

Lift in disrepair, hemp brings him down

So he prowls the macadam with Cheetah

The Halloween Jack is a real cool cat
And he lives on top of Manhattan Chase
The elevator's broke, so he slides down a rope

Onto the street below, oh Tarzie, go man go

(Samhain is another term for Halloween, Jack is often what John's are called, Tarzan was friends with a Cheetah )

A tartlet nears with The Specials

She wears no grin, but Salvador's accessory

Nostalgic, chocolate chip cookies

Destroyed and quadriplegic, yet the boxers are unwavering

Meet his little hussy with his ghost town approach
Her face is sans feature, but she wears a Dali brooch
Sweetly reminiscent, something mother used to bake

Wrecked up and paralyzed, Diamond Dogs are stabilized

The Specials had a hit with "Ghost Town". Salvador Dali.

Annus belbus in the dog days of summer

Strut next to the beach; hasten to the trench

"In the Year 2525", a hipster goes solo

Pain is inevitable, try to live through the night

In the year of the scavenger,the season of the bitch
Sashay on the boardwalk, scurry to the ditch
Just another future song, lonely little kitsch

(There's gonna be sorrow) try and wake up tomorrow

(Belbus is Latin for Hyena (http://latin-dictionary.net/definition/6268/belbus-belbi). In the year 2525 is a song about the future.)

Minor Hint:

The song has a post apocalypic setting, reminiscent to some of the novel: 1984. According to Wikipedia this was the intention of Bowie on the Album of the same name: "Thematically, it was a marriage of the novel Nineteen Eighty-Four by George Orwell and Bowie's own glam-tinged vision of a post-apocalyptic world." https://en.wikipedia.org/wiki/Diamond_Dogs

Major Hint:

A __ is a man's/girl's best friend.

The genuine article:

http://www.youtube.com/watch?v=36lWAcY9IXE