Why shouldn't undocumented immigrants get the stimulus cash when they're the ones who need it the most?

Criminal migrants should be deported back to whatever hole they deserted to invade America. They have no rights here, especially no right to any money. If they have needs, let them go home and fulfill them.

thats up to trump to decide

Because it's our money and not theirs.  If an illegal invader showed up at your door uninvited claiming they need what you own more than you do, would you hand over the keys and leave? 

If they want financial stimulation let them return to their home country and get it there.  And the same with medical care and schooling and work and all the other things they're robbing us of.

The purpose of the 'stimulus' is to shovel more govt. money into the economy.  The way you do this is to give money to working people, and they spend it right away, and that money goes into the economy.  Every time that money changes hands, the govt. gets taxes on it.  You've heard the saying--Money is like manure--it doesn't do any good until you spread it around.

Giving tax cuts to corporations and rich people doesn't work as well because they already have plenty of money, so the stimulus money goes in the bank or drives up the price of real estate or whatever.  But give it to someone who's trying to raise two children on the minimum wage, and they're going to spend it TOMORROW.

If you look at it this way, the money is not so much a 'gift' to the recipient.  The recipient is only a vector, a way to distribute the money so it goes into the economy.  And by this logic, illegal immigrants are the best people you could give it to!

"Undocumented', the euphemism for ILLEGAL. Artificially softening the term does not make them any less illegal. 

I have a suspicion that Hooverville's are coming back.

They're criminals. Kick them out. Need has nothing to do with it.

Perhaps they should instead return to their home countries.

Because the should not be in the country, they should claim back in their own country.