You cherry-picked examples. Counter examples would be:

Crowdstrike up 1067% Cloudflare up 1408% Robinhood up 148%

For an index fund, I would take a break even or even a slight loss on AirBnb to get those Crowdstrike and Cloudflare returns. I do agree with the overall sentiment that the foundation AI companies are overvalued but the whole point of an index fund is not have to analyze each individual company.