otaku vs nerd

im sick of people saying im otaku. I insist i am just a anime game nerd but they insist im otaku.help me prove this to them.

what are the differences between otaku and nerd when both are into anime and games. please explain why you think soo.

Actually, a weeaboo is just somebody who wants to be Japanese so bad that they'll immerse themselves in the culture and forsake all of the their native culture.

For case examples:
 /a/ is full of "otaku" in the American sense of the word.
 /jp/ is full of weeaboo.