The simple answer to your question is:
YES. It is technically possible. There is nothing about SegWit that makes it technically impossible to also implement Unlimited, and there is nothing about Unlimited that makes it technically impossible to also implement SegWit.
Then why not say that, then shut your mouth?
Every other part of your post is simply subtle politicking, as if you're somehow the voice of reason if you say "I'm the only one who says this is political", when in fact at least 2 other posters have made the same essential point already (demonstrating you're manipulating the narrative to make yourself appear trustworthy, pah)
Danny's post is covertly political, he publicly states that BU is actually an attempt at a genuinely intended dynamic block sizing concept, but really it's just a dressed up way of allowing miners to entirely control the blocksize, and to cut the honest hardworking professional software developers out of Bitcoin development. Danny never addresses any of this, he simply says "I don't do politics" when invited to discuss the technical "merits" of BU
If Danny was really interested in the technical argument, he would be mentioning the serious technical attack vector that BU represents. But of course, because no real Bitcoin users are actually interested in having any aspect of what should be a system with limits becoming unlimited, Danny has no choice but to continue the social engineering attack on Bitcoin instead (currently the only effective attack against it)