Ethereum's high transaction cost issue has been around since bullrun 2017 & ETHKitties event, but the community still loves Ethereum, DeFi projects in 2020 also choose Ethereum over other platforms with lower transaction costs. The reason is that Ethereum has a huge community of supporters and the Ethereum development team is working very effectively.
Going back to the problem that you set up: SOLUTION FOR ETH HIGH FEES. I think we have several solutions:
+ Wait for the development of ETH2.0 in 2021. If ETH2.0's scalability reaches 1K tps, we will see transaction costs go down;
+ A few projects use other platforms to relieve pressure on the Ethereum network. I think Cardano & Polkadot are the best options.
Transaction fees is now a matter of concern in ethereum network but we have nothing to do other than wait until the end of 2021 to get better results from ethereum 2.0.
Cardano, Polkadot and TRON can be better choice to release pressure on ehtereum network if new projects are developed from those blockchain.