MarcusNorberg:...I support the workers right to the fruits of their labour...
The main point of contention seems to be over time preference. I'm unaware of anybody arguing that people are not entitled to the product of their own labor.
However, I've seen socialists on YouTube, and on various blogs and forums, claim implicitly that they should be exempt from compensating others for using facilities, tools, materials, and information acquired by their labor. So, in effect, these socialists would be doing precisely what they're accusing others of doing.
add: I was unhappy with the way I worded that last paragraph so I'll try to clarify what I meant. The way in which some socialists are claiming a right to the product of their labor would necessarily entail depriving others of just compensation for the use of facilities, tools, materials, and information they procured through their own labor and provided for others to use.