Argentina witnessed a significant display of opposition on Wednesday as the country's largest union initiated a 12-hour strike, drawing tens of thousands of Argentina workers to protest in the heart of Buenos Aires, Reuters reports.

The focal point of the demonstration was the stringent economic austerity measures and reforms introduced by the new libertarian President, Javier Milei.

The strike, orchestrated by the General Confederation of Labor (CGT), a potent umbrella union, impacted various sectors, from transportation to banking.

This marked the most substantial resistance to Milei's agenda of spending cuts and privatization since he assumed office last month.

The Argentina president, committed to addressing an economy grappling with 211% inflation and overwhelming debt, faced a formidable show of discontent.

The strike unfolded amidst intensified scrutiny of Milei's two pivotal reform initiatives.

One involves an "omnibus" bill progressing through Congress, while the other is a "mega-decree" aimed at deregulating the economy.

The Argentina unions, led by influential figures like Pablo Moyano of the truckers union, voiced concerns about these reforms, particularly expressing apprehension about potential infringements on Argentina workers' rights.

"The first cut this government is making is to the workers," asserted Moyano during the main union event in downtown Buenos Aires.

Despite the widespread strikes, Milei's administration remained steadfast in its commitment to pursuing the outlined reform plans.

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Omnibus Bill Advances Amidst Widespread Strikes

Earlier on Wednesday, a committee in the lower congressional house, the Chamber of Deputies, approved the omnibus bill, a pivotal component of Milei's reform agenda.

The strikes, commencing at noon, reverberated across transportation, banks, hospitals, and public services, according to BBC.

Local airlines reported numerous flight cancellations due to the large-scale demonstration.

Protesters brandished placards conveying messages such as "The homeland is not for sale" and "Eating is not a privilege."

Some even carried a giant puppet representing President Javier Milei.

Another poignant poster highlighted concerns about retirees, stating, "Today's retirees are yesterday's workers; stop robbing them!"

President Javier Milei justified the proposed austerity measures by citing years of overspending that left Argentina burdened with substantial debts to both local and international creditors, including a $44 billion deal with the International Monetary Fund (IMF).

Milei's move to devalue the peso by over 50% faced criticism, with experts pointing out that any gained competitiveness was offset by inflation.

Challenges and Opposition to Argentina President Javier Milei's Reforms

Argentina President Javier Milei's reform agenda, focused on deregulation and spending cuts, has faced challenges on multiple fronts.

Over 60 lawsuits have been filed against the reforms, and public demonstrations have occurred, per Al Jazeera.

Some proposed changes, such as increasing the job probation period and reducing compensation for dismissal, have already been halted by a court pending congressional review.

Additionally, the government is pushing for the privatization of state enterprises, although Milei's party faces resistance from larger parties as it is only the third-largest in parliament.

Security Minister Patricia Bullrich, supporting Milei, denounced what she referred to as "mafia labor unions" and other entities resisting the democratically decided change envisioned by society.

Opposition parties and Argentina unions argue that the proposed deregulation and spending cuts will disproportionately impact vulnerable populations, exacerbating poverty.

President Javier Milei, in response, blames decades of overspending by previous left-wing populist governments for Argentina's economic challenges and insists that his reforms are necessary for the country's recovery.

READ MORE: Argentina Economic Crisis 

This article is owned by Latin Post.

Written by: Bert Hoover

WATCH: Thousands of Argentinian workers expected to protest Milei's budget cuts - From FRANCE 24 English