What you're describing is how to be resilient at a personal and community level which is well and good. It is also expensive, not accessible for many, and involves basically admitting defeat.
"Pestering" your local politicians and voting for the liberal capitalist party over the regressive capitalist party is not proving to be a sufficient formula for change. Relying on personal consumption changes like "don't buy from Amazon" is also insufficient and essentially a capitalist myth that the onus of climate change is on the consumers.
We need revolutionary individual and mass action and to disassemble the capitalist domination systems that are baking our planet. There is no other way through where we make it out alive.