Intent. The law always uses intent. To compare political ads to the list below is facetious at best and I was calling out one example of content that could be moderated with protection and comparing it to a political ad. You seemed bothered by the comparison. As would most rational folks be. Not sure why this is difficult to understand.
(2)Civil liability No provider or user of an interactive computer service shall be held liable on account of—
(A)any action voluntarily taken in good faith to restrict access to or availability of material that the provider or user considers to be obscene, lewd, lascivious, filthy, excessively violent, harassing, or otherwise objectionable, whether or not such material is constitutionally protected; or