Why should one be entitled to the property of their brother? What's special about a brother that should be unavailable with leaving property to, say, one's best friend?
Communism never ends up well. Remember that when your wishes become reality.
Not only that's not communism, but, by the looks of it, greed-capitalism isn't turning out so well either, now, is it?
I don't see what this has to do with communism, and frankly I don't think you do either. And I do agree with you that taxing inheritance is unacceptable.