I'll give you an example - the concept of whether bitcoin's energy consumption is a problem.
According to research, Bitcoin's energy consumption is less than the energy required for gold mining. If bitcoin was to replace gold as a store of value, it doesn't mean that gold mining will cease to exist. Gold will still be used for other purposes. What we will have instead is a world with both bitcoin mining and gold mining. The amount of gold that needs to be mined may be less than it is currently if investment demand moves towards bitcoin, but the mining sites and operations will still be there. Is the environmental impact from mining 100 tonnes of gold exactly half that from mining 50 tonnes? Arguably no, because of the economies of scale. And if no, then how does the environmental impact scale according to the level of gold demand? Given this, what are the implications when we compare a world with just gold mining (and no bitcoin mining) compared to a world with both bitcoin and gold mining? This is a more realistic comparison because a world with just bitcoin mining (and no gold mining) is extremely unlikely. These are questions that I'd like to know but i don't feel confident answering because I'm not an expert in the field.
If Bitcoin replaces gold as a store of value, demand for gold will definitely collapse and the incentive to mine gold would drop down significantly as well(not totally cease to exist), hugely reducing the potential damages to the environment. Gold's use-case outside being a financial hedge is a minority, but if gold's value goes down, probably expect a decrease in demand for gold jewelry as well.
As for being expert in any field, you just need to have better research skills. Being able to filter out false or misleading information is a valuable skill. And you don't even need to necessarily listen to the Nic Carters and the Cathie Woods; go check their sources.