The comment parent to you said it poorly. The 401k is the container, you don’t move stuff out of it you change the investments inside of it.

The tax advantages of being forced to pay ordinary income rates on your distributions as compared to long term capital gains (which are low, capped, can be exercised before a tax hike, and avoided entirely if you just need collateral)?

Keep in mind post tax income sources are king when retiring before age 65 and looking for ACA subsidies.