Calling people names, noting who they married, referening their hair, skin tone, partner preferences or where they went to school, are all weak reasons to like or dislike someone or their point of view.
Listen to the policies they advocate for. Think through the short term implications and the associated longer term ones. Watch what they do. Do they live the policy?
If you reference any of the above external, non-policy points in a discussion, you’ve lost. You may win in popularity, if your followers allow weak arguments. However, you’ll know that you’re not improving the group, yours or the wider societal one.
Keep your points focused on the pros and cons of the policy. It may get less audience reaction, but it will help us all improve our thinking skills and make an actual difference in peoples lives.