Actually will make the situation worse, since Germany uses the taxpayers money to support many other countries around the World.. Less tax money, less money to share.
> It's also not going to persuade China and India to change course
Even worse: It will show other Countries that the right way to move forward is to be like China and India, instead of being like Germany.
Another thing. China has more people that Europe and US combined and so does India. With your statement you are somewhat implying that we (European as Us citizen) have a right to pollute more per capita than Cinese and Indian citizens. I don't think that's fair.
So you've admitted China and India has more people, who want to consume more and produce more CO2 (don't make the mistake in thinking they are transitioning to renewables, they are adding them, but also adding shittons of coal power plants).
We have 2.3bn people that WANT to consume as much as the west per capita.
How is german economic suicide going to help? You bring down your own consumption for some moral reason, while completely ignoring what is happening in asia? How does that help anyone? It doesn't help the planet, it doesn't help yourself. The whole thing is some wierd suicidal virtue signalling. It makes no practical sense.
https://ourworldindata.org/co2/country/china?country=CHN~DEU
Seeing how China essentially took over global PV market share from Germany and Japan and will cross 500GW installed this year, doubling that number by 2028, I think they were already persuaded years ago - it's just that ramping up production to the scale of a 1bln+ country takes time.
And they're not doing this out of the goodness of their hearts - it's just cheaper this way.
Germany committing economic suicide will not save the planet. It's also not going to persuade china and india to change course.