It appears that mining costs and the creation of crypto currencies consumes a lot of resources

We have very little resources remaining in the world for each other and future generations. Does it make sense to waste resources like this? Could we do this in a cheaper and more economically friendly manner? And does the value of bitcoin directly correlate to the amount of resources and man hours that are destroyed in order to create it?
If you think investing in digital currency is a waste of resources then why are there so many people who invest in bitcoin? Is there any data to prove that it is a waste of resources? Knowing on how risky it is to invest on cryptocurrency but when you see the data that is in the chart you can see that investing on cryptocurrency is profitable. So i will not believe in what you say investing in cryptocurrency a waste of resources.