It doesn't take unlimited funds. It takes sufficient funds. And it takes actual Keynesian spending. And tax increases on those most able to pay.
It is the best way to get the money back.
How much funds? How many billions more are required? How much should they be allowed to increase pensions and public service salaries? How many people should the government be able to keep on payroll until the depression suddenly ends?
Are you willing to contribute some of your own funds to help Greece spend its way out of the depression?
And here's where the flailing and desperation starts to set in.