You are completely fucking lost.
No one has said anything about being offended by anime. No one has said anything about being offended that people watch anime.
Weeaboos are offensive because they take anime as THE defining point of Japan and Japanese culture, they racially fetishize us, they make offensive caricatures of us while claiming to “love and respect” us, they are abusive to us when we don’t conform to their fucked up stereotypes, they shit on other Asians for not being the “right kind of Asian”, they love claiming how “Japanese” they are while shitting on diaspora Japanese for not being “really” Japanese, etc.
in grade 8 i did a power point presentation on “whooping cough” and my opening slide was a photo of whoopi goldberg coughing and i was the only person who laughed at it and i couldnt start the presentation for like five minutes because i was laughing too hard at my own joke