Family issues

So I want someones opinion on this, why do people constantly think you are arguing when you are literally just talking to them, or if that person says something and you disagree or say the opposite they say “i just wont stop”.

My mother and I were having a conversation about the upcoming election and while we both agree on a lot of issues, but this one. I’m not going to go into detail, but she wouldn’t listen and she kept saying im always arguing or she doesn’t want to argue, and that im not respecting her and that shes my mother. I was just trying to challenge her views even tho it may be an uncomfortable conversation. She says this almost every time we have are talk about a lot of topics and we disagree, she thinks im arguing when I’m just trying to have a conversation.