There is no purity test that even the most committed environmentalist will pass. Everyone has a carbon footprint to some degree. But these attacks really are a distraction, an effort to push blame on individuals rather than focus on the systemic problems that exist. Climate doomism is just the latest tactic of a dying fossil fuel industry the goal of which is to make you believe that there is nothing you can do, so why bother. If one little girl can trigger a global youth environmental movement and generate the unstoppable political headwind that currently exists in the climate space then that shows how stupid a notion climate doomism is. My opinion is that if your motivations are to make money off green tech, or if you want to 'selfishly' save yourself and your family, or if you do actually care about your fellow human beings (shock!), then who cares if we are all rowing in the same direction.