You're not wrong. That said I want to take issue with one thing: Between the lines there is a suggestion that doing a small positive action is useless. But that implies that there is either a silver bullet-type solution where doing only one major thing will resolve the problem of climate change, or that there is no possible way we can resolve it.
I want to counter the implication by saying that the problem of solving climate change is easy in concept but complex in implementation.
The concept is that we must reduce GHG in the atmosphere and oceans, and reduce the amount of new GHG added there.
The solution can contain hundreds of minor actions working on concert, some certainly have more impact than others, but they all contribute, such as for example:
- Taxes on emissions.
- Incentives on sustainable actions.
- Local changes such as improved public transportation and cycling.
- Electric transportation.
- Large scale battery storage.
- Renewable energy sources.
- Better insulated houses can avoid peaker plants needed in winter cold snaps for heating, and summer heat wave air conditioning.
- large scale (industrial) carbon capture.
- Re-forestation (where the tree is not immediately burned but instead used long-term in e.g. housing and furniture).
- High speed rail to offset flights.
- Incentivise local tourism rather than long-haul flights for vacations.
- Social changes such as adjusted diet to be better (e.g. less beef, more lamb, poultry, and especially vegetables).
- Right-to-repair and related social changes that lead to a thriving second-hand-market.
For example, the EU Common Charger Directive (aka the USB-C Law) is expected to reduce e-waste by 12 000 tonnes yearly in the medium-long term and reduce GHG emissions ~to~ by 900k tonnes yearly. That may not look like nearly enough in the grand scheme of things, but once you do a handful of those it starts moving the needle.