it's an incredibly obtuse statement... zero understanding of economics.
it can't be a straight line because wealth creates itself, and more wealth creates even more of itself. even in social democratic utopias the graph looks the same, it's just a little flatter and shifted left and down so that the middle class has much less. wealth is not zero sum, you don't gain it from taking from someone else but by creating more wealth which you use to buy from someone else who is doing the same. if you want more wealth, you create an environment conducive to it's creation, not one which forces atrophy onto the system. when someone like Bezos goes all out to dominate the world and creates insane wealth, he makes everything cheaper and easier for me with my amazon prime sub which thereby means I have more money in my pocket and time to go about creating more of my own wealth. it's not that difficult to grasp.
can't remember who it was that inherited 2 million, but if it was him he won't keep it for long.
definitely have to do something though so the have nots have more before the revolt against the haves, as history shows they do. incidentally, this is why you see some very wealthy propose socialism, because in that case they can safely keep what they have and suppress everyone else before there's an uprisal
that Thatcher in the house of commons, these self destructive ideas just never go away. the arguments have already been done, the experiments run. socialism sucks