Really, the fact that different sizes of moral circle can incentivize coercion is just a trivial corollary of the fact that value differences in general can incentivize coercion.
But an expanding circle of moral concern increases value differences. If I have to pay for a welfare system, or else pay for a welfare system and also biodiversity maintainance and also animal protection and also development aid and also a Mars mission without a business model and also far-future climate change prevention, I’d rather just pay for the welfare system. Other ideological conflicts would also go away, such as the conflict between preventing animal suffering and maintaining pristine nature, ethical natalism vs. ethical anti-natalism, and so on.
Really, the fact that different sizes of moral circle can incentivize coercion is just a trivial corollary of the fact that value differences in general can incentivize coercion.
But an expanding circle of moral concern increases value differences. If I have to pay for a welfare system, or else pay for a welfare system and also biodiversity maintainance and also animal protection and also development aid and also a Mars mission without a business model and also far-future climate change prevention, I’d rather just pay for the welfare system. Other ideological conflicts would also go away, such as the conflict between preventing animal suffering and maintaining pristine nature, ethical natalism vs. ethical anti-natalism, and so on.