I know that at some level their merch and maybe the wasteful things are not a major sources of climate change but ... the attitude is. Each individual youtuber/podcaster is taking the attitude "My income is more important than the environment" which is basically the attitude almost everyone takes and arguably in the exact same category as fast fashion etc.
Do you really need a Kurzgesagt calendar/poster/plushy shipped across the world to you? Flash Forward Podcast is always advertising you should subscribe to have gourmet beers shipped to you on subscription. Sean Carroll's Mindscape podcast shills for Bespoke Post to send you boxes of stuff you don't need every month. Isn't there some kind of disconnect between these shows telling us we should do more about climate change and then pushing exactly the kind of consumerism that brought us here?
It was sad to watch VOX try to justify traveling by plane 10-20 times a year.