Translation of what you said: “Unless you are a hermit in a cave, you cannot possibly speak out about climate change.”
There is nothing hypocritical about using the tools that a society gives you to argue for major changes in that society and its tools. Indeed, it is our only hope to effect change. More, what an individual does has no effect whatsoever on the problem — the vast majority of greenhouse gasses are emitted by industry. The only way we can mitigate the effects of climate change is if we work together as a species to do it.