I frankly don't care what the US and China is doing, because they're doing the wrong thing. You're arguing that because you neighbour is throwing trash in the street you want to be able to do the same. I'd much rather make environmental demands of the products being sold to be from else where, and have them live by the same rules, allowing everyone to benefit.
Problem is not about the neighbors throwing trash. Unilateral co2 tax means industry relocates to regions where it's not present. In your analogy it would look like you are sending trash to US to deal with it.
DK is lucky to be able to get firming from nordics, but not everyone can do this. And from what I remember Norway already said one of the interconnectors will not have extended license at EOL
DK has one of the highest household prices in EU per eurostat https://ec.europa.eu/eurostat/statistics-explained/index.php...
Imo CO2 tax should be gone to alleviate this, especially when China and US dont have it. This just causes offshoring.
If you want electrification, you need cheap electricity. If you want more ren, you put more incentives there instead of overtaxing fossils to make own industry uncompetitive