Tell China and India to stop building coal plants first, and also ban private jets, and then we can talk.

Taxing carbon will affect everything, including private jets, and China is doing more for solar power than any other place in the world and they're also investing heavily in renewables and nuclear.

In any case, the solution to other countries not doing their parts is figuring out ways to incentivise and coordinate better outcomes, not giving up completely, giving up only makes sense if someone is in denial regarding the consequences.