I think it's really far fetched to say capitalism is bad idea. It's great system, it has some problems, but the upside is so big and alternatives are so bad that it's really unfair to call it bad system.
I think that encouraging corporations to destroy our environment (e.g. climate change) as fast as possible to maximise profits is a very good reason to call it a bad system. Yes, some goods and services become much more efficient, but now we're all going to have to pay the price for it.
Yh, the end of civilisation is a good thing after all, so enabling greedy fuckers to accelerate all life on Earth ever more rapidly towards destruction has to be good ...