The real divide in society is between rich and poor and not Brexit, Labour leader Jeremy Corbyn has told party members in Llandudno.
At Welsh Labour conference Mr Corbyn said his party is trying to end the Commons deadlock on the issue.
He said he did not want to pit remain voters in one part of the country against leave voters in another.
Meanwhile Welsh Labour leader Mark Drakeford said Brexit should not be used to “short-change” Wales.
He also announced £2.3m to offer sanitary products to all learners in schools and colleges.
The Labour frontbench in Westminster is taking part in Brexit talks with Theresa May’s government.
“Only Labour has been consistently trying to find a way through the deadlock,” Mr Corbyn said.
“Labour doesn’t believe the real divide in society is between people who voted to remain or to leave the European Union.
“We believe the real divide is between the many – who do the work, create the wealth and pay their taxes – and the few – who set the rules, reap the rewards and dodge their taxes.”
Labour does not want to “set the hard up family in Cardiff that voted to remain, against the hard up family in Wrexham that voted to leave,” he said.
The politician argued people that believe leaving or remaining in the EU are ends in themselves are “wrong”.
“The first question is what kind of society do we want to be,” he said. “On that we can find so much common ground.”
Mr Corbyn said the previous weeks in politics had been “intense” and that the Westminster political system had not come out of it well.
He said it was “scandalous” that the offer of talks on Brexit had come so late from the PM.
His party will continue to talk to the government, the leader said, to abide by the result of the referendum without “wrecking our economy”.
But if that is not possible all options should remain on the table, including a public vote, Mr Corbyn said to applause from delegates.
There are calls in his party for another referendum on whether the UK should leave the EU.
In his conference speech, Mr Drakeford told delegates that Theresa May was the “first Prime Minister in history to fall on her own sword – and then to miss it”.
The Welsh Labour leader accused the Conservative party of being “wrapped and trapped by a mythical nostalgia for a past remembered only by its ever diminishing membership”.
He said “the chaos of Brexit” is seen as an opportunity for Mr Cairns “to grow his own office”.
“So let me issue this very clear warning to the Secretary of State for Wales,” Mr Drakeford said, referring to Alun Cairns.
The AM for Cardiff West said if Mr Cairns “continues to persist in using the so-called UK Shared Prosperity Fund” – which is aimed to replace EU funds – “as a means of by-passing the National Assembly, as a way of using Brexit to short-change the people of Wales, then he is heading for a fight”.
The FM said EU funds must be replaced, and devolved powers kept: “Not a penny less, not a power loss”.
Currently EU funds in Wales are spent by a body of the Welsh Government, Last year Theresa May would not confirm if the new fund would be devolved.
Mr Drakeford said he had a “simple message” to voters and Labour members on the European elections, saying they should be taken as seriously as a general election.
“You will be told that these elections are meaningless; that it’s not worth bothering to turn out to campaign or not even bothering to vote,” he said.
“Please do not believe it.”
New MP Ruth Jones, who won the by-election last week, gave the welcome address at conference, telling delegates that in devolution’s 20th year “our task is to stand up for the people of Wales”.
“People have had enough after a decade of austerity,” she said, calling it a “political choice, not a financial one”.
Shadow Welsh Secretary Christina Rees appealed “for calmness in a country that is divided because of the inexplicable way the prime minister has handled the Brexit negotiations”.
She said language in emails and on social media had become “intimidating”, and had reported the worst cases to the police.
“It’s changed from ‘I’m writing to tell you I don’t agree with you’ to ‘You’re a traitor, letting down people who voted for you’,” she said.