The US president also apologised for the first time for retweeting a British far-right group’s videos apparently showing Islamist violence.
“If you’re telling me they’re horrible racist people, I would certainly apologise if you’d like me to do that,” he said.
Trump confirmed he will visit Britain later this year, where he believes he is “very popular”.
The president said he does not care about those opposed to his British visit, who include London mayor Sadiq Khan and the opposition Labour leader Jeremy Corbyn, amid predictions of large protests.
“I think a lot of people in your country like what I stand for, they respect what I stand for,” he told his interviewer Piers Morgan.
Asked if he had received an invitation to the royal wedding of Prince Harry and Meghan Markle later this year, Trump replied “not that I know of”.
“I really want them to be happy. They look like a lovely couple,” he said, when pressed on disparaging comments Markle previously made about the president.
– Not a feminist –
During the interview — billed as the first of his presidency with a non-US international broadcaster — Trump was asked if he identifies as a feminist.
“No, I wouldn’t say I’m a feminist,” he replied.
“I mean, I think that would be, maybe, going too far. I’m for women, I’m for men, I’m for everyone.”
Trump also signalled he would be willing to recommit the US to the Paris climate accord, but only if the treaty undergoes major change.
“The Paris accord, for us, would have been a disaster,” he said in the interview Sunday.
“If they made a good deal… there’s always a chance we’d get back.”