hmm, more like jumping into a new series in a franchise that rebooted a decade later. like saying you can't possibly like the dark knight because the 90s Batman movies were bad. they're completely different.

the Witcher franchise is based on books. the games happen chronologically after the books. the first two games don't really follow the book story. the third one decided to pick up the book story again and can be approached on its own. the first game was the first thing they ever made as a tiny Indy studio. the writing was bad and the gameplay was completely different. it's so old that it's from before 3d movement was standardized in games. they learned a lot over time.

you're not being fair by judging the later games off of the first.