It's a losing battle for Elon to think he can make all advertisers happy and still have actual free speech, even with Linda's help. Efficacy of advertising will be hindered if 'adjacency of ads to controversial content' is such an issue. Smart advertisers don't care about this because they care about maximizing sales, not discriminating customers based on interest in controversial ideas. Freedom of speech, not freedom of reach is soft censorship, especially if reach to your own followers is restricted. Controversial ideas need a path to exposure.