If you're upset by this you're an absolute clown.
Acting as if the entire league, and further sports as we know it aren't controlled by huge corporations. Acting like ads on jerseys is some threshold that can't be crossed, but players signing endorsement deals to wear a certain type of shoe isn't an adertisement and is perfectly fine.
In soccer you barely even notice the ads on the shirts. In fact you notice it more when they aren't there.
And if you still buy jerseys as an adult march out to a field and stay there forever. You're clearly too stupid to be anywhere near modern society.