Disagreement is not a sign of disrespect.
It is important to remember that you are disagreeing with a perspective or an opinion, not the person presenting the argument.
If your research has not helped you to better understand an issue or to think about the issue in a new way, then you have not done academic research.
You must also acknowledge your own bias. Don't forget that perspective is how you think about an issue, while bias is related to emotional feeling.
Need to review the difference between perspective and bias?