Not at all because it's not "I am entitled to your money" but "everyone's entitled to everyone's money".

Because it's more selfish?

Until you have a property system there is no "other people's" stuff.

Well we do have a property system so what are you trying to say?

That expecting there to be "your stuff" is already inherently selfish, so trying to argue that particular reallocations of "your stuff" are selfish is kind of ridiculous.

And now we are back where we started, with why is it selfish for me to claim it, but not you? Without property rights, no one has any right to anything and the world would be anarchy.

There is nothing selfish about property rights. If you make something, and want to use it, that's not selfish. If someone else comes and demands you give it to them instead, that is selfish.