It’s an article of liberal faith: Thanks to President Donald J. Trump’s $1.5 trillion Tax Cuts and Jobs Act, the Prosecco is popping on Wall Street, while the unsold Pepsi gathers dust on Main Street, where Americans are too poor to buy soft drinks.

“Workers are delivering more, and they’re getting a lot less,” former Vice President Joe Biden told the Brookings Institution last summer. “There’s no correlation now between productivity and wages.”

Americans “are sick and tired of the income and wealth inequality that sees the rich getting much richer,” Senator Bernie Sanders (Socialist – Vermont) told CapitalAndMain.com last month.

“Wages have largely stagnated,” the campaign website of Senator Elizabeth Warren (D – Massachusetts) complains, while “fundamental changes in our economy have left millions of working families hanging on by their fingernails.”

These grim, lachrymose myths cannot mask this incredibly upbeat fact: the sparkling wine is flowing on Wall and Main streets, and it’s running more rapidly on Main, where take-home pay is expanding the most among those with the least.

Never mind the liberal lies. Hard data reveal this reality. The Atlanta Federal Reserve Bank’s monthly Wage Growth Tracker shows that Americans are making more money, particularly those who have been forgotten for decades.

Between November 2018 and November 2019, overall median wage growth climbed 3.6 percent, a healthy pace that should lift spirits, too. Those in the bottom 25 percent saw wages advance 4.5 percent, while the top 25 percent lagged, with pay rising just 2.9 percent. This is the 180-degree exact opposite of what Democrats relentlessly bellow. They have equal access to the Atlanta Fed’s website. This confirms their rank dishonesty.

• When it comes to race, wage growth for whites was a tick behind, at 3.5 percent, while non-whites charged ahead at 4.3 percent.

• In terms of age, the young and the restless rule. Those ages 16 to 24 saw wages climb 8.4 percent. Americans 25 to 54 enjoyed 3.9 percent higher paychecks. And the typically higher-income 55-plus crowd was behind the curve, with 2.5 percent wage growth.

• Bachelor’s degrees generated 3.7 percent wage boosts for those who held them. But those who went no further than high-school graduation also savored 3.7 percent higher pay. Those with associate’s degrees saw their checks grow just 3.2 percent.

• While those in finance and business services scored 4.1 percent higher salaries, workers in manufacturing, construction, and mining were in a photo finish with them at 4.0 percent.

• While job stayers earned 3.2 percent more money, job switchers scored an extra 4.3 percent.

• Interestingly enough, those with low, medium, and high skills all shared 3.6 percent wage increases, matching the nationwide bonus.

Democrats should stop loathing President Trump long enough to show some love for the poor people they claim to represent. Democrats should stop lying to themselves and everyone else about low-income wages lagging those of the affluent. This is not happening. Democrats should acknowledge the wonders that President Trump and Republicans have done via tax reduction, regulatory relief, and a pro-business tone in Washington.

Then, Democrats should make this challenge to Republicans. Some 55 percent of Americans who are in the stock markets, per Gallup, are seeing their portfolios soar, as the S&P 500, Dow Jones Industrial Average, and Nasdaq break records. Since Trump’s victory, these markets have rocketed 53 percent, 58 percent, and 77 percent, respectively, as of Thursday’s highest-ever closing bells.

But the 45 percent of Americans who own no stocks — directly or as part of 401Ks or IRA accounts — are missing this bonanza.

Democrats should ask Republicans to work with them to make it as easy as possible for those not invested in the stock market to buy in. A bipartisan plan to erase barriers to equity ownership would be productive and beautiful.

Conversely, Democrats can keep weeping among themselves as their have-not base actually grows richer more swiftly than the haves the Democrats love to hate.