Why do you think that I am responsible person for all bitcoin problems?

Lol, I don't blame you for all of Bitcoin's problems. I do know you well enough to know that you are a Bitcoin expert who likes to profit off of vulnerabilities -- I also know that you have your own unique way of making problems/flaws in various systems public.
It looks like the fees used in some of the most recent (and unconfirmed) transactions are very low,
and will likely not confirm until the current backlog is essentially eliminated.
Such spam is the reason of current backlog
I disagree. 19yj1mUuA6nAoCRVvPY7Wo8MmBc9jPJBpo for example is spamming transactions with an ~12 sat/byte fee while others such as 17bgX68iQZW4RxeQTSw3AZBpboMKjYsscB and 1BMLUBy8MMEmpvudWhHXgnv5VCNr5ZxF3n are spamming transactions with a ~40 sat/byte fee.
It is reasonable to say that there are roughly 10 mb worth of transactions that pay a fee in excess of 40 sat/byte and in excess of 30 additional mb worth of transactions that pay in excess of 10 sat/byte (I do not have a breakdown in increments less than 10 sat/byte).
source).
It will take more than 10 blocks to reduce the mempool so that miners are confirming 40 sat/byte transactions because new transactions are being broadcast, and users will reasonable pay market rates for tx fees, which are above 40 sat/byte, and any transaction above this rate will result in this backlog not declining.