It's fair yes. 0.5-2$ cost just one month ago @ 10-14k vs 30-50$ for last weeks @ 15-19k. I don't think that it's fair at all. It only shows the impotence or manipulative greed of the people who are supposed to keep the network running.
If this continues it will bring no good, to people doing less then 500$ per transactions, actual users not traders.
I am aware that the current transaction fee of commercial sites is being raised by the high price of bitcoin. This is a reasonable price increase because when the bitcoin price will lead to many people involved in bitcoin mining and making the difficulty increase so much so need to increase the fee to pay for the miners.
The Bitcoin network is not only for the transaction of Bitcoin. It still support other crypto use the Bitcoin blockchain to build platform. OMNI is one of the projects made the current network of Bitcoin bottlenecks. Because USDT is also a platform use OMNI to build its system.