"Opinionated" is more appropriate. Ignorance often accompanies arrogance. Opinion, to me, at least contains a degree of knowledge.
You've dedicated your adult life to massaging ABIs and openly admit your
"non-polished" solution is an idealistic holy grail, and yet you expect
some text editor with a non-existent path to profitability to have hewn
to your every private thought about Linux binary versatility, and that
sir is bullshit.
Some talks I have given on this topic:
https://www.youtube.com/watch?v=pq1XqP4-qOo
https://www.youtube.com/watch?v=CwXixVcliP0
So, I think "entitled" is the wrong insult. "arrogant" would be more accurate.