Can he accept help from the state?

There is nothing wrong with accepting help from the state, if
the conditions set out for help apply to you, such as having a certain
number of children, or if you have a low income and so on. What is forbidden
is using tricks and lies to get this help. 

The basic principle with regard to accepting this money is
the reports narrated by al-Bukhaari (7164) and Muslim (1045) from ‘Umar (may
Allaah be pleased with him) who said: The Messenger of Allaah (blessings and
peace of Allaah be upon him) used to give us things, and I would say: Give
it to one who is more in need of it than me. Then on one occasion he gave me
something, and I said: Give it to one who is more in need of it than me, and
the Messenger of Allaah (blessings and peace of Allaah be upon him) said:
“Take it. Whatever of this wealth comes to you when you are not hoping for
it or asking for it, take it, otherwise do not hanker after it.” 

Because it was money that was given voluntarily by the giver,
without there being any harm or humiliation connected to taking it, so there
was nothing wrong with him accepting it. 

It makes no difference in this regard whether the government
is Muslim or non-Muslim, so long as that does not result in compromising
one’s religious commitment in any way. 

And Allaah knows best.