Can you please introduce me to one of these inhuman "things" that might fund a political advertisement without human decision or involvement?
So your fundamental objection is to political organization.
Consider your last question, though: What do you mean by influence?
Multi-nationals based in the US and elsewhere already had plenty of influence in various forms before this decision. Now...they can pay for commercials. They can now make blatant, public statements of support in front of American customers, roughly 40% of whom will take some degree of umbrage or offense to this no matter who they support.
How does this hurt democracy?