Meta slashed its DEI team in January.Fabrice COFFRINI/AFP/Getty ImagesA TikTok ban could happen as early as January 19.A ban could mean the migration of users — and billions of ad dollars — to competitors.Meta could gain up to $3.38 billion solely through freed up ad revenue, eMarketer estimated.If TikTok is booted from US app stores, Meta could stand to be one of the largest beneficiaries, analysts say.TikTok, the video platform owned by China's Bytedance, faces an impending ban if the US Supreme Court upholds a law that forces the parent company to divest from TikTok's US version or be forced to shut the app down by January 19.The legal action would most likely bar people in the US from downloading TikTok for the first time from app stores or from installing updates, eventually making the platform unusable.