"High unemployment ironically reduces child poverty, as more people without incomes reduces the median income very effectively"
Not true, half of the population would need to be unemployed before the median income was reduced by even one single penny.
If you've got five people who earn £10, £10, £100, £1000 and £2000 then median salary is £100.
If those two people at the bottom suddenly earn nothing the median doesn't shift one penny.
If those two people at the top suddenly earn £1 million the median still doesn't shift one penny.
As said, nonsense.
Fighting "relative poverty" is just another politically motivated endless quest that doesn't actually do anything and is never ending. It's the sort of vague notion that people find hard to say "no" makes politicians sound good until you stop and think about it. It also means that those earning above the median income, those same politicians, can earn as much as they want without ever having to have their pay reduced as a part of the "fight" against relative poverty.
Once again, nonsense.