I definitely think I have a disease, and do diligence to do what I need to do to keep healthy. And yes, having to do those things is often an inconvenience, but part of who I am and the hand I was dealt.
Having diabetes itself does not make me unhealthy, but choices I make can. Have had T1D 50+ years, since age 5, so it’s all I know and is what it is.
In my early years, we only had insulin and urine testing. But with my parents, we did the best we could to follow doctors advice. I am fortunate to have no serious lows or DKA, and good health care. In fact having diabetes was partial motivation factor for me to do well in school, college, and get a good job. And lucky to be left-brained and have family that supported me.
I also was introduced to things over time (BG testing, MDI, pump, CGMS, etc), and can only imagine how overwhelming that may be for those diagnosed now.