Polkadot offers better scalability than the ethereum blockchain. It offers relay chain, cross-blockchain features, forkless network, decentralized governance and all these are not available in the ethereum network. Actually, Polkadot offers all the solutions to those problems that the ethereum network can not. So many projects are using the Polkadot network. Do you think Polkadot is really Ethreum killer?
Come on, when will we stop comparing and start encouraging new projects, in the end it is the community that wins and we should always talk as a whole crypto market in mind. Polka dot is definitely one of the top projects but it will take time for it to get established in the market and with eth 2.0 just launching now i think the hype and focus will be back on eth.