But is there any correlation between child poverty and immigration?
The argument that economic immigration is a means of importing poverty is given within this document: October 25, 2006 Importing Poverty: Immigration and Poverty in the United States: A Book of Charts.
In short, poor people go to richer economies because they provide better opportunities for them. Nothing wrong with that as far as I'm concerned.
But let us go back to the End Child Poverty problem; who is it intended to benefit?
Simplistic analysis concludes that the intended beneficiaries are children. I don't accept that.
Beginning our analysis with immigration, the beneficiaries of immigration are the middle and upper classes of the host population. Employers get cheap labour (albeit illegally in a minimum wage environment) but by far the biggest beneficiaries are the employees of state service providers of health, education and welfare (such as housing, social work etc).
The 'end child poverty' policy is just an extension of this exploitation of immigrants by the middle classes of the host country.
There never is or was any credible intention to end child poverty; even its measurement is crooked, eg, relative rather than absolute; or, arbitrary demarcation, eg, what is the extent of child poverty in the UK when it is measured within the eurozone?