Disclaimer - As always you should consult a real professional expert on such matters.
I assume you are a U.S. Citizen.
Once you get to a certain size, your marginal tax rate is 35% for federal, which is extremely painful (and most certainly to be raised soon) when you are competing against clever traders operating at much lower effective tax rates off-shore.
It is a disgrace that we provide this financial system to the world, and yet we are by far the most heavily taxed when we try to use it for our own gain, meanwhile my foreign competitor in Monaco/Andorra/Caribbean/etc gets the full benefit of the security I am paying to provide them and they get MASSIVE benefits from compound interest unfettered by tax.
It is a ridiculous, and in the long term, unsustainable policy. The U.S. cannot be World Cop without either taxing foreigners directly, or taking their resources as payment, otherwise we will go broke (which is now happening).
If you run some spreadsheet calculations on what a 35% marginal tax rate is doing to your CAGR, it is almost heart-stopping. Particularly when you look out 10 years+.
So to stay legal, your only real bet is to move to a tax-free jurisdiction (preferably one with a foreign tax credit which will make your first 80-90K of income tax-free as long as you stay out of the States). You're still going to be paying that 35%/year unless you venture into grey or dark areas that are likely best avoided.
If you want to fix things, convince this country to rid itself of the Socialist mindset, and re-orient our geopolitical stance to either start requiring protection payments from other countries, or we walk away and leave them to fend for themselves.