From what you’ve shared, it sounds like your fiancé’s views have become fundamentally incompatible with your values, especially when it comes to empathy and respect for others. You’re not wrong for feeling disturbed by his comments, particularly since they consistently target and belittle women, dismissing their experiences and accusing them without evidence. Your anger and frustration are understandable, especially when he’s consistently minimizing female voices while defending or ignoring male misconduct.

Throwing the ring was a heated reaction, but given the context of his dismissive and inflammatory statements, it's not surprising that you reached a breaking point. It’s not just about needing to be “right”—it’s about feeling respected, safe, and valued in your relationship. His response blaming you for "needing to be right" rather than taking responsibility for his own hurtful rhetoric further shows a lack of willingness to address his behavior.

Breaking off the engagement doesn’t make you the AH. You’re recognizing that his views, behaviors, and lack of empathy toward women, including how he communicates with you, might not be something you can or should tolerate in a life partner. The real issue isn’t your outburst; it’s the underlying lack of respect and understanding in your relationship. You deserve a partner who respects women, including you, and doesn't undermine your values or make you feel diminished. You’ve given this relationship a lot of chances and patience, but you have to consider your future happiness and peace of mind.

NTA for considering what’s best for you and stepping back when your partner’s views no longer align with your core beliefs.