You should of course prioritize low hanging fruit and eliminate flying, car use, meat, low efficiency housing, etc. But thinking that it's only worth doing thes

You should of course prioritize low hanging fruit and eliminate flying, car use, meat, low efficiency housing, etc. But thinking that it's only worth doing these one at a time serially is a fallacy, as is getting stuck on the low impact of individual actions. Dividing the emissions pie to insignificant slices and then arguing that nothing significant can be done is just fooling yourself into inaction. Regarding horses, pointing out the emissions angle in response to "why would I care about power consumption" is basic table stakes in the world's current situation, no need to get offended.