Is crypto mining profitable 2021?

Yes but no . Ethereum is moving from Proof of Work (i.e. mining) to Proof of Stake (i.e. centralized holdings and not much mining) sometime in the future. The current estimated time for this change is June 2022, but that could slip (I think it was originally scheduled for January 2019 and we see how that went).

Despite several countries cracking down on crypto mining and countries like China even banning it, there was a rise in the revenue generated by Bitcoin miners by 206 per cent in 2021 , finds a report by Block Research and GSR, published in January 2022.

Due to the high cost and rising difficulty of mining Bitcoin , most miners today use something called a mining pool. Participating in mining pools is considered by many to be the only way for smaller miners to make any profit today, and even then it can be difficult to recoup the costs of equipment and electricity.

It totally depends on your electricity cost to per kilowatt try to figure out that first if your GPUs are costing you more in electricity cost than you actually making in mining then it’s not profitable as if it does then think about other cost that you will have to pay to start mining after that costings in evaluation …