Conservatives who constantly use derogatory slurs can be described as:
Racist: A person exhibiting racism, which can manifest as the use of racial slurs.
Bigot: A person who is intolerant toward those holding different opinions or from different groups.
Prejudiced: Someone holding preconceived, often negative, notions about specific groups of people.
Abusive: Engaging in verbal abuse, which often involves using derogatory terms to harass, insult, or denigrate others.
Bully: A person who uses their power (or perceived power) to intimidate or harm others, which can include verbal abuse.
Vulgarian: A person who is vulgar or unrefined in their behavior or language.
Hateful: Exhibiting intense dislike or animosity, often expressed through hate speech.
Feel sorry for them! Intense hatred directed at others can be a projection of an individual's own internal struggles, insecurities, and self-dislike.