There's a lot of problems.
You may be advertising for a candidate you don't support just for the money. Most of the advertising has nothing to do with policy positions. The money paid isn't disclosed. It manipulates people easily because it's fad chasing and the candidate often isn't even in it. It promotes rampant consumerism, validation, and group pressure.
Then again, there's a big problem with Facebook in general. But that's a whole other can of worms.
Do you feel that all the people who work at Facebook have the same integrity problem? Anyone who works for a company that either makes money from or provides services to companies who make money from advertising?
I believe it is some of the people that work there not all obviously, but it's mostly the system that's the problem. Ads nowadays are specifically designed to track you and harvest personal data about you at zero expense to you. They are often deceptive in that they advertise a product always as a cure all for everything and they use proven psychologically manipulative tactics to get you to buy the product instead of demonstrating what the product can do.
Obviously, Facebook has skin in the game to keep this system going. Which is why they're doing a poor job of fact checking ads and would rather not do them at all.
