Memes

People in power don't tend to "grab more power." "Power" is not a metaphysical power that corrupts people, what actually happens is that systems like capitalism reward those that get profit by any means necessary.

Capitalism would not be acceptable even with a progressive tax. The basic fact is that capitalists want to pay as little as possible while workers want to be paid as much as possible, and that all profit a capitalist could make comes from value workers created.

Not only this, but capitalism trends towards imperialism and collapse, it's unsustainable. Over time, there is a tendency for the rate of profit to fall due to a rise in the ratio of capital to labor as representing the value of a commodity. This is combatted by expansion to raise absolute profits, and by monopoly to raise rates of profit. What this creates is a systemic push towards underdeveloping the global sourh, placing compradors in power, and super-exploiting foreign workers for super profits.

The US Empire is at the helm, but western Europe and strategic allies also benefit and participate in this system. No amount of progressive taxation can fix this, what we need is for humanity to become the master of capital. We need to work towards collectivization of all production and distribution, and orient this towards satisfying the needs of everyone.

I also have no idea what you're hinting at by saying "there's no we."