Are they though? At least for AI/software the last 30 years were fantastic to have universal access to means of production (compilers, tools, operating systems, models, you name it).

I am more worried about the capability of people to use the free means of production (more precisely improve education) rather than the concentration.

Edit: and to remove any doubt, I do agree that taxation of capital is completely badly done now, but I do not think the capital is about owning the means of production but about the capital (effort) required to organize people to use the (mostly) free means of production.