Bitcoin mining now requires a lot of patience because at the current rate of Bitcoin mining, it is difficult to raise the mining cost.
As bitcoin miners, they want the opposite, reduce their mining cost and raise their mining profit. I am sorry but you are saying oppositely to the truth and what Bitcoin miners want to have.
There are many bitcoin miners in the world, not one or two miners, and only a certain amount is mined for each block, so it is not profitable to mine now. Yet many mine to fulfill their hobby.
If they are newbies, they can mine Bitcoin to get experience but if they are professional miners, they do Bitcoin mining for profit, not for fun, curiosity or to satisfy their hobby.
The supply and demand of Bitcoin is very negligible right now so it is a great opportunity for us to save Bitcoin for the future. 0.0244140625 BTC will be mining rate when we start living around 2050. Then the price of Bitcoin will skyrocket. And those of us who are now failing to save bitcoins will just be hollering then
Bitcoin miners have to pay their costs like power bills, buying ASICs, maintenance, staff operations and more activities needed for mining. They can not hold all bitcoin they received from mining process.
You again used a wrong term. Mining rate, it is not a right term and the correct term is Bitcoin block reward. You must know Bitcoin miners receive bitcoin from block reward and transaction fee.
https://en.bitcoin.it/wiki/Controlled_supply