If it takes, say, 13 years for that to happen, you could well have refugees who have children born in the UK, who have only known life here.
They are proposing to e.g. send parent back to a country they haven't known for years, also ripping their UK-born children out of the only country and perhaps language they know. May also separate adult couples if partner is of a different nationality.
What human rights? Labour are xenophobic ghouls just like the last lot