Boeing dwarfs SpaceX in experience building spacecraft.
Mercury and Gemini spacecraft were both built by the McDonnell Corp. That company merged with the Douglas Aircraft company (which built the 3rd stage of the Saturn V rocket) becoming McDonnell Douglas in 1967, which merged into Boeing in 1997. Boeing itself co-manufactured the space shuttle orbiters with Rockwell.
On paper and judging from experience and history, if you were going to pick a single company to build a spacecraft, it would be them. Not some brand new company run by a space-obsessed software engineer.
Clearly Boeing has huge cultural issues and has for a while.
Just saying if you wanted to go off experience alone, they’re the best there is.