...a strategy that limits fossil fuels in the short term or encourages people to limit consumption is “doomed to fail”.
Maybe, but the world has to reduce global carbon emissions by half, within a relatively short amount of time, to have any chance of limiting warming to a level that gives us the best possible chance of not passing critical climate tipping points, and the only way to do that is to significantly reduce our use of fossil fuels. Carbon capture will likely also be necessary, and maybe so will be geoengineering (god help us), but there is no possible strategy for limiting warming and hopefully avoiding passing critical tipping points that doesn't involve rapid and dramatic reductions in fossil fuel use. So, if that's doomed to fail, then the world not passing critical climate tipping points is also doomed to fail. I think a lot of people just figure that's a foregone conclusion at this point, and maybe it is, but if that's the case then let's just be honest and say that what we're facing in the latter half of the 21st century, and possibly sooner, is significant catastrophe.