MoonSong
Rules-lawyering drama queen but not a munchkin
I hate to break it to you, but the D&D sorcerer is whatever they say it is in the D&D books. Telling someone they have "contempt" for the sorcerer because they don't share the same opinion as you is not only hyperbolic, but pretty ridiculous. Who made you the authority on what a sorcerer should be like? You have your opinion of what the class is, but clearly it doesn't jive with how D&D is viewing it. Get over it and move on.
If you really want to start talking about what a sorcerer should be, then I'd have to point you to Howard's and Leiber's versions as the "true" version of what a sorcerer is. And D&D is not, and has never been, the best system to represent those mechanically.
Also, "underpowered" and "undersupported" are entirely your subjective opinion. Judging by how you used "versatile" earlier, I'm not sure you really know what these words actually mean, but just sling out hyperbolic words from your own contempt. That would be some irony. Sort of like your statement about not paying attention to the details, details, details.
Undersupported, having too few options. Not a new happening just compare 4e compendium, there are over 400 wizard powers and barely 250 sorcerer powers. A 4e wizard can strike for way more punch than any sorcerer could-basically outperforming them in their job-. A 3.5 wizard with all splat involved can basically cast spontaneously from a spellbook, but don't dare to give sorcerers even a few more spells known because it would break the game...
And versatile is not the same as flexible, yes sorcerers in 5e are more flexible to a certain extent, but have been denied all the world-changing magic that wizards still wield and it is harder to build any kind of non-blaster. And it is a lie that a sorcerer can cast more spells than a wizard. First because wizards have ritual casting, and a thing called arcane recovery oh and once they hit 18th level they can cast some low level spells at-will and their capstone is an extra third level slot. Couple this with more spells available at any point and a way wider spell selection, a wizard is indeed more versatile and more powerful overall.