everybody knows the solution, *you* know the solution, it's just a hard pill to swallow so mental gymnastics are preferable.
as a species we know that the overconsumption of resources is the problem. there are exactly zero valid arguments against that. anybody who claims that consuming less resources *isn't* the solution is either ignorant or lying.
it isn't, because no solution that require any form of altruism is an actual solution.
Degrowth is not a viable alternative on a world that's still has a large number of people that need better standards of living, and will still be adding a couple billion to the population. There's no viable economic or political model that would make degrowth work.
degrowth is the only thing that could work at all, the lack of compatible economic and political models that would be compatible with is exactly my point, which is why we will ultimately not solve the problem.