Suella Braverman has been blasted for being “all talk” ahead of a speech where she will complain about out-of-control immigration.
The Home Secretary was due to whine about the rising numbers of people arriving in this country - a policy area she is responsible for.
Figures are expected to be published later this month showing net immigration hit 700,000 people last year.
Mrs Braverman will tell an audience of right-wingers today that Brits are "forgetting to do things for themselves" and insist it's not racist to want control of Britain's borders.
It comes amid a fresh bout of Tory infighting after the party's dire local election results, where they lost more than 1,000 councillors.
Speaking on the opening day of the National Conservatism Conference, Mrs Braverman will say: "It's not xenophobic to say that mass and rapid migration is unsustainable in terms of housing supply, service and community relations."
But Labour leader Keir Starmer said it was "pathetic" that the Home Secretary was giving posturing speeches rather than getting a grip.
He told LBC: “Suella Braverman, the Home Secretary, is today making a speech about what she thinks ought to happen on immigration.
"She is the Home Secretary. They have been in power for 13 years.
"This is like (Arsenal manager Mikel) Arteta doing a speech this afternoon on, ‘this is what Arsenal ought to do’.
"If you’re in the job, it’s your job to do it. She is all talk and that is a major part of the problem.”
Mr Starmer branded the Government's Rwanda deportation scheme as "morally unacceptable".
He said: "The Rwanda scheme is morally unacceptable. It's impractical. It hasn't worked. It isn't going to work.
"And I'll tell you what, I accept the challenge. That's not enough me simply saying that.
"I've said until I'm blue in the face - break the criminal gangs that are doing this work, that are forcing people into this position in the first place."
The Labour leader said the Government needed to clear the backlog of asylum claims, which topped 160,000 for the first time in December.
Mr Starmer said: "This is pathetic. Honestly, I'd say to the Home Secretary 'Stop the speech, cancel that. Get back to the office and sort out the processing of these claims.'"
Ms Braverman is expected to say she backed Brexit so Britain could control its borders and argue for less dependence on "low skilled foreign labour".
"High-skilled workers support economic growth. Fact," she will say.
"But we need to get overall immigration numbers down. And we mustn't forget how to do things for ourselves.
"There is no good reason why we can't train up enough HGV drivers, butchers or fruit pickers. Brexit enables us to build a high-skilled, high wage economy that is less dependent on low-skilled foreign labour."
In a veiled swipe at Rishi Sunak, she will say: "That was our 2019 manifesto pledge and what we must deliver."
