Before we start laying out the logical argument for a course of action, it's worth considering whether a logical argument is what's needed.
It may be that the person you're engaging with cares more about symbols, about tribal identity, about the status quo. They may be driven by fear or anger or jealousy. It might be that they just don't care that much.
Sometimes we find ourselves in a discussion where the most coherent, actionable, rational argument wins.
Sometimes, but not often.
People like us do things like this.