Jeremy Corbyn said in a statement he disagreed with the prime minister's invitation of a formal visit to Trump and he would not attend any state dinner, Daily Sabah reported.
"Theresa May should not be rolling out the red carpet for a state visit to honor a president who rips up vital international treaties, backs climate change denial and uses racist and misogynist rhetoric," Corbyn noted.
"Maintaining an important relationship with the United States does not require the pomp and ceremony of a state visit. It is disappointing that the prime minister has again opted to kowtow to this US administration," he added.
Corbyn, on the other hand, did not rule out a meeting with the visiting US president, stating that "I would welcome a meeting with President Trump to discuss all matters of interest,".
Trump will pay a state visit to the UK in the first week of June, a statement from Buckingham Palace said earlier this week. During the visit, on June 3-5, Trump will be joined by his wife Melania.
The invitation for a state visit by May was extended to Trump during her 2017 visit to the US, sparking criticism due to the new president's controversial travel ban on seven Muslim-majority countries.
Paying the UK a working visit in July 2018, Trump saw protests from thousands of British people in London and in various major cities, including Manchester, Birmingham, Glasgow, and Belfast.
A petition calling on the British government to cancel the invitation gathered over 1.85 million signatures. It said any official state visit should be axed "because it would cause embarrassment to Her Majesty, the Queen".
It also added that Trump's "well-documented misogyny and vulgarity" disqualified him from meeting the Queen or other British royals.
The government responded to the parliamentary petition, saying it believed the American leader should "be extended the full courtesy" of an official reception.
Trump's visit to the UK came under further scrutiny when he re-tweeted anti-Muslim videos originally posted by fringe far-right group Britain First, an action Theresa May labeled "wrong".
London Mayor Sadiq Khan said at the time that Trump was "not welcome" to visit the UK, noting that the president "used Twitter to promote a vile, extremist group that exists solely to sow division and hatred in our country".
In 2017 Parliament Speaker John Bercow underlined that Britain's relationship with the US is valued and the decision for a state visit by a president is beyond his authority.
"However, as far as this place [House of Commons] is concerned, I feel very strongly that our opposition to racism, and to sexism and our support for equality before the law and an independent judiciary are important considerations," he added.
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