You have every right to disagree with people and not share in their viewpoint. People who want you to agree with them hook-line-sinker disagree with you after all. They do not share 100% in your opinions and they disagree with your disagreement. Nonetheless, how you infer your disagreement can be a problem.

This episode is also available as a blog post: http://georgesdiary.blog/2021/01/20/how-to-disagree-on-social-media/