How do you deal with people who don’t care?

Basically, I just got into a huge argument with my sister. I’m really tired of her “both-sides-isms” about American politics. My sister has never been a far-right MAGA person but she is entirely apathetic and politically disengaged. No matter what evidence I provide to her of Republican wrong-doing, her immediate reaction is “but Democrats.” I feel like I just want to explode. Am I wrong in saying that only one political party is currently looking to curtail civil rights? Because last I checked, only one side was pushing anti-trans/anti-LGBT+ bills on state and federal levels. Please tell me I am not crazy. I’m really starting to regret coming out to her.