watch the movie dirty coin (Alana mediaville, I think it'S on amazon, anyway not hard to find)

fwiw this argument is winnable but it takes effort and preparation and if you are the odd guy in a crowd of people who dislike you for tribal reasons, it might be better to be be a wallflower and just listen and resist the urge to engage.

if you don't feel ready to debate the Bitcoin is bad crowd, you can just politely say "I don't think Bitcoin is climate negative or anyway uniquely climate negative any more than say washing machines or any other tech, but I'm not ready to defend that position with facts and arguments at the present time. I am still learning about it."

if you must argue, when you get "as much electricity as Argentina" try "how much is that in percent of that total?" (fwiw it's like 0.2% but the really point is neither you nor the other person probably actually knows)