Earlier quoted context omitted.
'It' ? What exactly is immoral and why?
It's the coercive nature by which wealth is redistributed to other people that brings upon the questions of morality. If I'm forced at the end of a barrel of a gun to give up any portion of the fruits of my labor to support others, it is immoral.
If you are able at all to give up any portion of the fruits of your labor you should be grateful for the conditions set up before you that allowed you to reach such place.