Be careful what you say or even think about people, especially if you don't know them. Remember that one small bad thing you say or do, you have to justify before God one day. So think twice before being rude or judgmental or holding grudges. Just love them like you love yourself. Always be kinder than necessary!
I don't consider what I hold a grudge. What I think is if I try more than once to ignore rude people and it gets to the point where I want nothing to do with them because of who they portray... I remember all of the rude things it's not a grudge it's facts and evidence of why I can't have anything to do with people who are rude and self absorbed.
If you’ve dealing with someone rude and toxic in your life – for a passing moment or perhaps long-term (e.g in your family or in your workplace), view this article and video for 8 tips to support you https://www.pinchmeliving.com/toxic-people/