hmm.. well, I wish you good luck but from my experience

there are two kinds of people at least. There is a group of open-minded guys, who would at least listen to what you say. And by carrying out frank discussions with them, it really improves their understanding of the situation, even if they still stand on their own side --- which is perfectly fine. However, there is a group of "simple minded" guys, who do not really listen at all. All they do is just to cry out their ideologic slogons and get self-satisfied ---- their purpose to talk on net is different, not to gather information, not to learn, but just to express their "superiority" again and again. I do not think they will change and I do not even care.