Do degrowthers really believe a peaceful transition is possible
Source for thinking the degrowth crowd thinks this: Introduction to "The Future is Degrowth". Does the degrowth crowd really think they can get rid of capitalism without any violence? This seems to have the opposite of a historical precedent, and is a deviation in Marxism, which they seem to heavily draw from. Anytime revolutionaries took the peaceful road they got outcompeted at best and massacred at worst.
Degrowth isn't a serious ideology. It's just cope for people who believe that capitalism will bring about the apocalypse. The work of changing the world is reserved for those dedicated to living, not those waiting to die.
It seems like degrowthers have some valuable insight but yeah if you simultaneously did not believe in the neccesity and potential of revolution and state overthrow it would be very "doomer".