Yup for people who are against Bitcoin and cryptocurrencies in general they always try to find loopholes or associate bad things on it yet they fail to even make a good ppint about of it. Just like what they are saying about crypto mining taking up a lot of power when they fail to make renewable energy as a factor. They talk about mining wasting energy as if electricity now is a scarce resource. Why not instead of complaining about it they instead try to improve the renewable energy we currently have because it is really now important to change from coal to a much more greener alternative.
the success of bitcoin to become the world's alternative currency, it certainly makes some countries or some of the world's financial system services feel threatened, so those with all power will hinder the progress of bitcoin to make the world's single currency, but the bitcoin step is unstoppable because the system offered by bitcoin makes it very easy for users, maybe in the future bitcoin will still be the currency of the world's single.