Take the global wealth, divide it by the population, and redistribute it evenly.

Suddenly a lot of productive assets are no longer working.

Do you think capital allocation will be better when it's being done by everyone?

Bad take. Obviously if you you cut a factory into a million pieces and hand them out, you've lost value.

Investment tools cover all your concerns here. (Hopefully paired with a regulatory framework that prevents scams (looking at you, crypto))

> Investment tools cover all your concerns here.

Nope, since you decided that investments can't make you richer investment tools no longer works.

And if investments are allowed to make you richer you didn't solve wealth inequality, because most people will just spend and consume rather than invest in anything.