Is this an advantage taken from MetaMask?
It could be that this is a fee from MetaMask because MetaMask is the third application that also requires a fee for developing its application, so it's reasonable.
Is this an advantage taken from the Miners?
I also think miners are their main thing to take advantage of this high fee because miners do not want to lose money in maintaining their hardware, so they take advantage of Ethereum transaction fees.
Is this an advantage taken from Ethereum itself?
Ethereum is independent , Ethereum can't take it for this problem because Ethereum is a Coin and same with noun , transactions using miner and applications .
Does anyone feel the same here?
yes, same with me because this is transactions not different with another coins of Ethereum .
Do we need to be disappointed about Ethereum here?
i think depends with case , for this problem is fee , we can't disappointed because we can't succes of transactions if fee not available . Maybe next time miners and applications can change to low fee transactions for life better .