Why are you people obsessed about sun glare? There is no "glare" in the vacuum of space. At midnight on a day with no visible moon, the sky you see will be the same regardless if there was a sun, no sun, or a sun 10x as bright. Unlike ED where the sun tints the skybox, this is not how RL works.
It's a nitpick, but that isn't 100% true. There's the
zodiacal light, there's the
Gegenschein, there's high altitude
airglow. None of those effects would be present without the sun. However, you need to already be under extremely dark skies to perceive any of those with the naked eye. Of those effects, airglow is the only one you remove by going into space -- the others are caused by sunlight scattering off dust and gas in the ecliptic plane -- and it usually is at best barely naked eye visible at all. Technically there's a tiny bit of atmospheric sky brightness attributable to scattered starlight, too, although that's only about 1/10 as bright as the airglow.
The E: D skybox tinting is still ridiculous, though. I've tried to defend it in the past as suggesting the perceptual shift caused by the eye compensating for a bright colored object in the visual field, but even that argument totally fails for the case where the star is
behind your ship.
The things you mentioned here are, generally, correct. The other obstacles are still counting.

These are the main reasons why "we're" spending millions of dollars launching telescopes into orbit to get a clear view into the depths of space.
Sort of. The main thrust for space-based telescopes in recent decades has been to study wavelengths (infrared, submillimeter, UV and shorter) that are blocked by the atmosphere. With optical telescopes, the advantage of space is somewhat nullified by the fact that you can build far, far larger instruments on the ground. The development of adaptive optics techniques has partially nullified the limitation of atmospheric blurring, too. For instance, JWST will put a 6.5 meter mirror in space, at a cost of many billion dollars. The ELT, estimated to into operation in 2025 for a "mere" couple billion, will have a 39 meter mirror, or almost 40 times the light collecting power. With that many more photons to work with, it's possible to power through a lot of the disadvantages of looking through the atmosphere.