[...]How this problem will meet with a solution?
I'm interested in this as well but I am yet to read a solution on the protocol level. All I've seen are about the work-arounds like using more of LN or altcoins if withdrawing from centralized services. I guess Bitcoin will just have to take all the punches and endure until those network attackers and their funders gets tired or run out of money. Regular users like us can only wait.
Hopefully there is a code work around but I've seen no interest in fixing this from the devs and I see some people saying it can't really totally be stopped even with changes...not sure if that is true or not.
With luck hopefully people just lose so much on this s**t meme tokens that they abandon them on Bitcoin and same with jpeg NFTs on Bitcoin. I don't mind NFTs being on Bitcoin, but picture NFTs are the dumbest use of NFT technology, but because pictures are the low-hanging fruit of NFT usage that is what became popular even though its useless. There are plenty of useful things for non-fungible tech in a decentralized blockchain, and so if Ordinals was used for that...actually worthwhile and valuable NFT transactions, that'd be fine. But instead people are just shoving useless stupid image data into the scarce valuable bitcoin blockchain space and making the network less useable for people who actually want to use bitcoin.
Hopefully this also motivates all major exchanges to implement LN functionality which would go a long way to lessening the demand for transactions. Since bitcoin is still many years away from actually being used for payments by most people, the main reason for tx is moving bitcoin between exchanges, from exchange to wallet, or from wallet to exchange. If exchanges all implement LN it will alleviate a lot of this other than those who are interacting with long term cold wallets, while at the same time onboarding lots of people to the LN and giving people an actual reason for using the LN since payments won't be a thing for years to come. Exchanges using LN would be great for getting millions of people already on LN before btc payments are widely available and it will greatly expand the LN but also kickstart payments because once you've got millions of people on LN able to make instant payments it is much more likely merchants will start taking bitcoin payments. No matter what happens with NFTs/tokens filling up blocks, if in the meantime it drives LN onboarding that'd be a great outcome for Bitcoin. Like right now I have zero reason to use LN cuz I have no one to pay bitcoin, but if exchanges start using LN I'd have a reason to use LN well before I have a reason to pay people in bitcoin, and then I'm already using LN once merchants start adopting it!