If you don't like his art just stop seeing this. I did not understand why you said bad words to uncle. You have right to dislike his art but you can not criticize to his work. If someone said your blog are rubbish then how will you feel it? This is just an example and I am not talking your posts are rubbish.
You need to behave yourself properly. Think before your talk and you write.
Wish your bad days will be over soon.