The thing is - it's very hard to change people's minds in debates. People have biases, see the world through their viewpoint, look at media that reinforces their view point, see the world as tribes, as them and us, and that's how our brains are wired.
Everyone has views, opinions, beliefs. They see something, they react emotionally and they create their view of the world. Who knows how people's minds, views and opinion of others can change. We all know the experiments where people can easily be radicalised to hate others. It doesn't take much to create other.
It's interesting to ask people why they believe what they do and how strongly they believe it. If there are alternate views, if there is any doubt in their view and what others might say to challenge their view.
It certainly beats arguing on the internet.