We hate L.A.

After Rockies sluggers Nolan Arenado and Trevor Story blasted back-to-back home runs on a glorious, made-in-Colorado afternoon, a feisty crowd of 47,833 at Coors Field began chanting so loudly the message thundered all the way from the Rocky Mountains to Southern California: “Beat L.A.! Beat L.A.! Beat L.A.!”

We don’t like those stinkin’ Dodgers. They win too much. And know the worst part?

Every time the stinkin’ Dodgers win at home, they crank up the same stinkin’ song and play the victory march for the boys in Dodger blue: “We love L.A” by Randy Newman.

“I try to run really fast into the clubhouse whenever they play that stupid song. I don’t want to hear it. Nobody wants to hear it,” outfielder Carlos Gonzalez said Sunday, after Colorado routed Washington 12-0. (Charlie Blackmon hit for the cycle, but the Rockies missed two extra points.)

Coors Field was rocking on the final day of September. After starting pitcher Tyler Anderson hurled a shutout into the seventh inning, he was given a standing ovation, led by teammate Ian Desmond, clapping his hands on the infield.

Ain’t this party great? We don’t want to go home from LoDo now. “It’s good stuff,” Rockies manager Bud Black said.

Before Rocktober can really get rocking, however, Colorado must take a detour to Dodger Stadium, where the National League West championship will be determined Monday afternoon, during nine more innings of intensely tense baseball.

With apologies to Newman, who’s a national treasure, we hate L.A. Hate it from the time we start rolling down the Imperial Highway. And isn’t that big nasty redhead Dodgers third baseman Justin Turner?

“Hate is a strong word. But not strong enough,” Rockies fan Daniel Levine said.

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“I’m a rabbi, and I try hard to like everyone,” said Danny Wolfe of Denver. “But I must be honest. I really, really, really, really, really dislike the Dodgers. Maybe they are decent folks in real life, but I doubt it.”

You know Kyle Freeland. He grew up around here. You probably stood in line with him at Starbucks back in 2007, when Colorado fell in love with Rocktober. Freeland was a freshman at Thomas Jefferson High back then. But his dad wouldn’t let Freeland attend the 9-8, did-Holliday-touch-home, do-or-die playoff victory against San Diego at Coors Field.

“It was a school night,” Freeland explained.

A major-league expansion team and Freeland were both born in Denver 25 years ago. “Growing up a Rockies fan, I grew up disliking the Dodgers quite a bit,” Freeland said.

We feel your pain, K-Free.

“I’d rather have a back-alley root canal performed by a third-grader than root for the Dodgers,” said fan David Sully of Aurora.

For maybe the first time in the history of this dusty old cow town, “Beat L.A.” is shouted with more urgency than “Beat the Chiefs.” Given the choice Monday between the Rockies escaping Los Angeles with a victory and Vance Joseph outwitting Kansas City coach Andy Reid at Mile High, it’s no contest.

“I’d rather watch Tom Brady win every Super Bowl for the next 10 years than to see the Dodgers win the World Series again,” said Colorado fan Aaron Crane, a Marine veteran.

These Rockies are good, 91 victories good. Beat L.A. and Colorado has the right stuff to get back to the Fall Classic for the first time since ’07. But what are the chances of starting a deep playoff run with a road loss in SoCal? Nope. Don’t like that.

“If the Dodgers played Russia,” Rockies fan Brian Outzen said, “I would sit in the stands dressed in red with a bottle of vodka and start the chant: ‘Let’s go comrades.’ ”

Nothing would be sweeter for a Rocktober dreamer than to see Colorado win its first division title at the Dodgers’ expense. Please allow baseball-lover Christine Voss to explain.

“Eating at Casa Bonita and then riding the roller coaster at Lakeside 15 times in a row on a hot day is better than the Dodgers,” Voss said.

Amen, sister.

Our gritty little Rockies head on down the road for Game No. 163, hungry for the whole enchilada, with a side of all the marbles. It will be German Marquez vs. Walker Buehler on the bump. We don’t have to be reminded who’s the underdog. Los Angeles owns six World Series trophies.

And we have … Casa Bonita? But now’s the time for our started-from-the-bottom-now-we’re-here Story.

Chasing franchise history at Chavez Ravine, the Rockies have one goal at the end of nine innings:

Don’t let ’em play that stupid song.