You can configure your 401k to not be involved in this nonsense. I moved my US stock holdings to a few value-based index funds. The ones I'm in now have a 0.25% expense ratio. Still not as low as an S&P 500 or similar index fund (usually about 0.01-0.025%), but still better than most traditional managed mutual funds (1-2% range). But what's good about funds like this is that they don't weight the index based on market cap. They don't try to have the index track the dow, the nasdaq, or the S&P 500, which are all based on market caps based on present trading price. Instead, these value index funds weight based on objective measures, rather than market price. These measures include things like actual revenue, book value, debt level, etc.

You can still get broad market participation at low management cost while avoiding the AI IPO grift.