I want to say, "How can you not like Kari?!" but we're all entitled to our own opinion. If that's how you feel, who am I to persuade you. Question though, why don't you like Kari? You don't have to answer if you don't want to.
maybe my answer will be not enought for u but anyway: for example in Digimon 1 she seems to be so delicate Tai has to worry about her all the time, thats not fair. Tai was blame by his parents when kari got sick and had to go to the hospital (when they were little) his mother even hit him just beacuse kari was so special that if something happens to her everyone has the foult. She is supposed to be the light how Ridiculous, she is not the light. what i mean is that in digimon the creators wanted to show her like someone extremaly special in the story and tryed to give less importance to the other characters for example mimi, izzy,sora.
In digimon 2 she was suposed to be called by the dark or something like that but she didn't had a sad past or anything, so why would the dark side want her, i didn't get it. she depends on others to move foward she can't do it alone.
she is supposed to be pretty but she is ugly and why does everyone have to like her: Davis, the three brother of... (i don't remember the country). but most important SHE CAN'T BE LOVED BY TK. TK and her are an horrible couple but i have seem many pictures of them together i hate that. TK is to much for her.
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sorry about the grammar, and its ok if u think that my answer is not enought to hate kari but that's how i think