Mealy Mouthing or Minusing our Motivation?

There is an obvious reluctance, even by people seriously concerned about climate change, to warn that things may already have gone too far. Nobody, unless you are selling a religious afterlife, wants to call out 'The end of the world is nigh'. That would just be too demotivating, preventing people from even trying to save our planet. George Monbiot has gone a bit further than most of his contempories, in noting that the Earth's tipping points could be closer than people think (https://www.theguardian.com/commentisfree/2021/sep/09/earths-tipping-points-closer-current-climate-plans-wont-work-global-heating). Tipping points are changes, that once reached, are impossible to put into reverse. They include elements like the thawing of the tundra, major changes to rainforests, the melting of icesheets, alterations of major ocean currents etc. Tipping points will act like a row of dominos. As one collapses, it pushes over its neighbour. Monbiot maintains our current plans won't work. This is because they are calculated to increase global temperatures by 2.9 degrees Centigrade above pre-industrial levels. He also rightly points out, that the Paris accord, limiting global heating to 1.5 degrees Centigrade, could still produce disasterous and irreversible alterations to weather patterns. 1.5 degrees Centigrade was also only a 'guesstimate' about an upper 'safe' limit for climate change. Not everybody was even convinced they had to achieve this modest aim. Statements from politicians and some companies now prominently trumpet their 'intention' to reach carbon zero by 2050. Other companies demand, we return their commercial activies to pre-Covid pandemic levels, irrespective of increased emissions. Do they really think we have all the time in the world? Are they really sure the tipping points will wait until 2050, if they have not already been reached?