I agree with 1-3, which were actually arguments I put against the person I replied to (I said 1 when I explained that Switch is focusing on a length vs. short term release schedule which means a console that lasts longer and has more content at the end of the hardware's life, and I said 3 when I explained that unless you are including third party titles the release schedule on switch is actually pretty similar to that of a handheld + home console lineup of the past, especially when you cut out the unoriginal content on both sides), except for 2 which I think just speaks for itself given the status of Odyssey and BOTW. Seems like we agree but you just cut out the first part of my reply, which I really only used to sympathize with the person's perspective. For example in the next point you make you say "regarding your other argument", when in fact the first part you are replying to to is not even an argument. My argument is everything you cut out, which is conveniently the part you agree with.
Of course that is a no-brainer. My point is that the concept of a "hybrid" more so lives in the plane of practicality and not so much in the literal sense. In the literal sense, the Switch is already a handheld device. Whether or not it's "dedicated" is up for debate I guess, but it is portable. If a new Switch released that was catered more towards the portable crowd then it would still most likely have dock capabilities, even if it released without a dock. It would still be a portable device because everything needed for the system to work is in the handheld. But with how people actually use it in their day to day lives, yes, it is a hybrid.
I skimmed most of your post that opened with sympathy, because it started on the wrong foot. Yes, we agree for the most part, but don't make people believe that they have sort of valid points when they are posting rants, because it will put yourself in a position where you have to type essays to refute an argument. The one crucial point I didn't see you address is that Switch has yet to enter the phase where it is Nintendo's only console. The 3DS saw continued good support throughout 2017 and into 2018, so many of Nintendo's development teams had yet to begin development of Switch software in earnest.
The second half is semantics. 'Dedicated' in the context of video games refers to a device that is about playing video games, but that's not a point I touched on in my previous post. I think we are better off by agreeing that all these semantics won't be worth the time it would take to dissect them.