Which would be a good point to argue, and a good distinction for the law to make, but Google's defense is that even a deliberately pro-ISIS algorithm would be exempt under 230. From the article:
>>They argue that in an internet brimming with content, there is literally no way to present things that doesn’t involve some deliberate prioritizing of what to show. Taking their argument to its logical extreme, Google’s lawyers even claimed that Section 230 would protect a platform against suit over a deliberately pro-ISIS algorithm.