For me, it's not about the word choice of "killing"; it's the seeming implication that "current radicalization" is caused by lack of "understanding" and then leads to "cancel culture" as the true problem. Your mission statement sounds kind of like "I want to win the argument with my current set of beliefs" rather than "I hope through honest and open minded discussion we can discover our own blind spots and reach common ground to move forward" or whatever.

Look at the supportive and critical comments you received; it looks split down the line based on political leaning. It may be worth considering that if you want to avoid creating just another echo chamber.