Are you pushing for taxes to cover every negative externality of any product? If so then a lot of cities will owe a shit ton of money for the light pollution and other externalities they produce. Or is somehow fossil fuels the one and only thing you believe we should "care about what the market thinks"?
The idea that costs associated with light pollution are even on the same planet as those associated with climate change is an exercise in absurdity. In a perfect world all negative externalities would be accounted for. In our imperfect world however we can probably just focus on the giant, planet altering ones first and then revisit light pollution later.
You’re grasping at straws here because you know you’re wrong.
And are you bothering to consider the net balance of positive and negative externalities of products such as fossil fuels, such as that while they "emit carbon" they also have the positive externality of allowing billions to enjoy standards of living above what was typical in the 18th century?
That is not a positive externality. An externality is a cost or benefit accrued to someone who is not a party to the transaction. The people using fossil fuel power to enjoy higher standards of living are definitely parties. This is untrue for carbon emissions as we will all be impacted by climate change regardless of how much fossil fuel energy we personally consume.