The counterpoint is essentially that if people engaged in social outward-looking collective action, as opposed to solitary inward-looking meditation, then you can change the world -- as has been demonstrated countless times.
You certainly can unelect politicians in the next election. Environmental movements have made gigantic progress towards cleaning up the air. And congestion pricing is starting to spread as the solution for cities to reduce traffic, and it works.
As an individual you probably won't be the single tipping point. But collective action happens because lots of individuals work together, and it requires all of those individuals. But it requires more than changing your reactions, it requires collective action.