You might want to boycott this or that business so a billionaire Trump supporter doesn't get your money.
If someone owns multiple billion dollars, there are going to be very few businesses he doesn't own stock in. Your money flows to them no matter where it goes when it leaves your wallet.
Concentrate on finding businesses that deserve your business and patronizing them, rather than obsessing about avoiding all the ones owned by Bezos, Zuckerberg, Musk, etc.