Here are some possible second-order effects if you can't say that you boycott X in writing. - It means you can't advertise that you boycott X and get business

Here are some possible second-order effects if you can't say that you boycott X in writing. - It means you can't advertise that you boycott X and get business from other people who also want to boycott X. - It means you can't require a subcontractor to also boycott X when doing a job for you.