If you'd stuck around you might have noticed that the project is, essentially, European. The main contributers all live there, they receive funding through Eurostars, and I don't remember any of their gatherings/sprints being held outside of Europe.
In the future you might want to watch that knee-jerk reaction, it can put your foot right in your mouth.
Given the history and imagery of "Uncle Sam", it becoming the equivalent of a genericized trademark cracks me up and makes me marvel at the longevity of a well crafted marketing shtick.
The use of the image has remained culturally strong because of the many brilliant satirical treatments it has received, not because it is a powerful signifier calling for people to work together.
1) We don't have Python3 support yet, we're working towards it, but we're behind some. Have the reference implementation be a regression over the previous one doesn't make much sense.
2) We don't have enough users.
And honorable mention reason: RPython is an... interesting language to program, something like a cross between C, Python, Java, with error messages from MUMPS.
Is fixing that tractable? Cryptic error messages is one of the most frustrating turn-offs to new would-be contributors.
/probably one of the few people here who has written MUMPS code