These are good bullet points.
A few notes:
‘Space has not been militarized’ - Not YET, but the former president of the US created the first ‘Space Force’ – now a branch of our armed forces (although, in my opinion, this is/was completely unnecessary – we already have US Space Command [a branch of the Air Force] and dozens of military-owned satellites, etc.).
As for space being ‘open to all Earth nations’…Yes, in theory, but in practical reality, it costs billions to establish a space-based platform of some kind (like a space station, or, a rocket launch program), and then many millions to launch even a simple satellite (or 'swarm of cubesats/nanosats [plus, NEO is getting crowded, rapidly) …So, a large chunk of national wealth must be ‘disposable’ for space missions. This precludes most of the worlds nations.
One way to engender Public interest (among all nations) and participation is through calls for public art that will be included (in digital form, usually) on various space missions. This was the case for the 2017 (on-going) OSIRIS-REx mission to asteroid Bennu (now returning to Earth), wherein this writer’s short video (‘A Dream of Space’ https://vimeo.com/manage/videos/157067014) was included along with a couple hundred other art works (visual art and poetry). Although NASA’s public outreach office did not handle the promotion/publicizing of this very well, in my opinion, nonetheless, it generated larger-than-expected public interest in the (rather ‘dry’) mission – not least of which was due to the ‘coolness’ factor and bragging rights.