No. There are many parents making sensible, responsible choices about how many children they have who are working really hard and being given no help.
When you work, no one gives you a rise because you have another child. You have to save, plan and reduce the amount you spend on other things or make the often sad decision not to have another child.
As to the 'children in poverty' - this is relative poverty, not absolute poverty and relative poverty is a measure of having less than others - this will always exist.
To those who want to end it - do you have an upper limit on how many children someone can have? Five, ten?