Both the Economist and the WSJ state explicitly that the main reason the TikTok ban picked up so much bipartisan steam in DC since Oct. 7 was because of how much Israel criticism was allowed to air and circulate on the platform (see below).
WSJ:
‘It was slow going until Oct. 7. The attack that day in Israel by Hamas and the ensuing conflict in Gaza became a turning point in the push against TikTok, Helberg said. People who historically hadn’t taken a position on TikTok became concerned with how Israel was portrayed in the videos and what they saw as an increase in antisemitic content posted to the app.
Anthony Goldbloom, a San Francisco-based data scientist and tech executive, started analyzing data TikTok published in its dashboard for ad buyers showing the number of times users watched videos with certain hashtags. He found far more views for videos with pro-Palestinian hashtags than those with pro-Israel hashtags. While the ratio fluctuated, he found that at times it ran 69 to 1 in favor of videos with pro-Palestinian hashtags.’