Litecoin and Doge and Ethereum were mined on GPUs throughout that period. And in fact all the other coins are tied to bitcoin in the first place, bitcoin price runs also trigger huge mining booms in everything else, so yeah, it's kinda understandable that people tend to view them as a single linked thing, because they kinda are.

What, precisely, is the point of making "actually you mean crypto, not bitcoin" posts, other than demonstrating that you are, indeed, "very smart"? Like, this person doesn't even exist, it's just a "heh aren't those no-coiners dumb" strawperson that you imagine to be some big dummy.