Polarization around gender equality debates has gained prominence in recent years. Using a multilingual, web-scraped dataset from the ActEU Horizon project, comprising over 30 million texts, we investigate how polarization in gender equality debates varies across platforms—Twitter, Telegram, and news media—countries and topics. Through semi-supervised approaches discourse is classified on issue position, topic (e.g. economic, legal, health, etc.) and target group (e.g. women, families, LGBTIQ+), allowing us to analyze how sentiment and polarization diverges across these dimensions. The analysis offers insights in relation to gender equality polarization in online discourse in a rare cross-country and platform context, identifying which targets (e.g. women vs LGBTQI+) and issues are especially polarizing. How do radical right and other political parties use online social media to frame gender-related issues, and how does this framing influence affective polarisation among their supporters and opponents, as well as the positioning of other parties on these issues?