Ask HN: Who is running full Bitcoin or Ethereum node these days?

Given the current size of the complete blockchain for BitCoin or Ethereum, who would be able to afford to run the full node these days? I know that I can't. It almost feels that one would need to purchase a specialized hardware which would not be chip, just to be able to run the node. Isn't this by itself defeats the purpose of blockchain? And it's not getting any better over time -- it's only going to get worse. Does the size of these blockchains jeopardizes the future of these cryptos?