Is it wrong that I don't want my in-laws to visit us?
Are the in-laws really difficult to be around with?
Yes, I realized they are too boring to hang out with. They always sit in the same position and they always speak in the same tone.
Them being too boring is the least of your concerns. It's okay to have opinions on your in-laws because it is common but you should try and be more supportive since they probably just care about you and want to see you. You can't expect them to change who they are.
Your a hypocrite for telling me I'm wrong.
You should be mindful of wrongly and negatively judging others. Consider how you would feel if your in-laws judged you negatively because of the way you sit or speak.