Before you decide to go away from crypto space simply because we are in a bear market I want you to know that some amazing stuffs was built in the last bear market, our so called Ethereum killers
1. Hedera 2. Solana. 3. Algorand. 4. Avalanche.
These projects came in the bear market, if you walk away now till next btc halving you will be missing a lot of future opportunities.
Look at the four coins you mentioned how they suffered in the face of the current market downturn before you say they are ethereum killers, only SOL is a bit more promising than the four coins on your list but I don't want to take the risk of buying solana right now because for me it would be better to buy ETH because the returns offered by ethereuem are much bigger than solana when the bull market has returned.