I appreciate your thoughts and it's clear that you're engaged in this critical issue. Let me take a moment to address your objections and share a different perspective on some of the points you've raised.

1. *Impact of Human Activities:* A preponderance of scientific evidence supports the conclusion that human activities are causing climate change. A meta-study by Cook et al. in 2013 revealed a 97% consensus among publishing climate scientists that humans are causing global warming. This is supported by organizations like the Intergovernmental Panel on Climate Change (IPCC) and NASA. Human activities such as burning fossil fuels (coal, oil, and natural gas) and deforestation increase the concentration of greenhouse gases in the atmosphere, leading to global warming and resultant climate change.

2. *Impact on Working Class:* While it's true that some green policies could disproportionately affect the working class, it's also crucial to recognize that inaction on climate change will ultimately have severe socio-economic impacts, including on the working class. Rising sea levels, increased frequency and severity of extreme weather events, disruptions to food and water supply, and an increase in climate-induced migration and conflict will have widespread impacts. Thus, a fair transition to a low-carbon economy is needed, ensuring that the costs and benefits are shared equitably. Government policies could help in achieving this by offering subsidies for renewable energies, facilitating job transition, and implementing progressive taxation.

3. *Carbon Footprint of the Wealthy:* You're absolutely correct that wealthier individuals have larger carbon footprints and should lead by example. A study in 2020 reported that the richest 1% of the population produce double the combined carbon emissions of the poorest 50%. Advocating for the reduction of carbon footprints at every socio-economic level, starting from the top, is integral to combatting climate change.

4. *Nuclear vs. Renewables:* While it's true that Germany's shift from nuclear power has led to some reliance on natural gas, this should not be viewed as a failure of renewable energy. Rather, it highlights the complexities of energy transitions, which are often fraught with political, economic, and technical challenges. Renewables, in general, have seen significant advancements, with solar and wind power becoming increasingly cost-competitive. They have also shown great potential in reducing emissions if deployed properly and coupled with adequate storage solutions.

5. *Individual vs. Systemic Change:* It's not about wearing "hair shirts," but rather promoting sustainable choices wherever feasible. Nevertheless, systemic changes are indeed needed to address the scale of the problem. Governments, corporations, and institutions have significant roles to play in facilitating this change. This doesn't exempt individuals from responsibility, but rather emphasizes that both individual actions and systemic changes are essential in mitigating climate change.

Addressing climate change requires a multifaceted approach that incorporates social justice, economic stability, and environmental sustainability. It's a complex issue, but the evidence is clear: human-induced climate change is real, and action needs to be taken now to prevent its most catastrophic impacts.