Nice of you to side-track with current emissions (per capita even), and not cumulative historical emissions, which were actually mentioned.

Feel free to compare different countries yourself: https://ourworldindata.org/co2-emissions-metrics (I'm not sure why ourworldindata doesn't just put all of this on one page instead of splitting it up. It's always a hassle to find the right one it even is on the same page, I just didn't look close enough) The more interesting comparison might be high-income vs low-income countries.

To get back to the discussion: Yes, Europes share is not as huge as it used to be, and it's getting lower, but what can be seen from @Tehdastehdas@piefed.social graph is that that's less due to Europe behaving better and rather due to other countries polluting more. Not a good argument for saying "Europe is doing better now"

Right now, yes, but for the vast majority of history it wasn't even close. Your link shows that China only met the EU's per capita emissions in 2013, when climate change was already pretty far along. And they are still profiting from their past emissions via the wealth and societal development that they generated back then.