This is a false dichotomy, the way you shutdown O&G is through political action, making personal choices to limit your personal carbon output is a political action. It directly hurts O&G and directly helps the alternatives.

Making a personal choice helps drive political will which changes how people make personal decisions which drives political will. Arguing about which step to bootstrap the process seems pointless. If it's easier for you to show up at Tuesday at 11am to city council meetings and yell for more bus routes do that. If it's easier to increase your commute 20minutes and drive up ridership to give ammo to the council people, do that. If it's easier to drop a big sum of money to lobby the government do that. Just do whatever you can that helps.

We are all drops of rain in an ocean, but without the rain the ocean would run dry.