You are an awful troll, but I will answer in a manner that suggests I don't think you are just being stupid.
Yeah, the gap not being 3 character-lengths wide makes it pixel precise. The most movement precise thing I have ever done is Honest Man's Death supergraze, and even that is not pixel-precise. The closest thing to pixel precise is probably One of Ichirin's supergrazes or some PCB border or Hourai Jewel. Some random supergraze basically that you will never do unless you are doing high level scoring on lunatic mode, mostly. There's dumb shit like Apollo 13 but nobody does that crap anyway. Survival play will usually not involve pixel precise dodges unless you get shitty RNG on Remilia's Vampire Illusion or something. A ridiculous complaint.
The only games with fast bullets all over the place are the phantasmagoria games. So PoDD and PoFV. Yeah, PoDD's bullets are lightning fast, but you almost guaranteed don't even play it, much less on lunatic where it's actually present. And PoFV has a lot of things to compensate for the bullets if you can't dodge them like the level 2 area cleanup-thing. Another moot point.
The next 3 don't interest me as they're just really silly again. Dialogues have no influence on gameplay and just because you can't dodge the curved lasers doesn't mean they're unfair. Also your computer being shit has nothing to do with the game.
Lack of Fighters: Wow man, Since when is it a requirement that a STG series has fighting games? As IHNN said this point is completely ridiculous and it's weird that there are any in the first place. They're more like fangames than official Touhou games in the first place.
Easy mode being too hard: git gud, scrub
Lack of Lives: The game with the least amount of lives is PoDD and again, I doubt you even play it. In fact, you're likely just playing the windows games only in which game EoSD and MoF give you the least lives which makes you look silly because you get 8 extra lives. For MoF that's enough to bomb literally every boss pattern and still clear and for EoSD that is enough to at least bomb/tank through every difficult attack in the game.
None of the Touhou glitches are unfair except the TD extra mode crash and he PoFV charge bug.
That is false, IHNN. in UFO you can randomly die to nothing in some of Ichirin's spells. It doesn't happen very often, but I've seen it happen against the midboss card and the 2nd to last spell. Another maybe unfair thing is the glitch Chiyuri and Marisa are experiencing in PoDD. When they use a charge attack they can't bomb until it left the screen, which often gets you hit in bad situation if you're used to bombing things while charge attacking. DDC crashing on stage 4A on lunatic also wasn't exactly fair

There are likely more that weren't all clean, but for the most part the bugs in the games are mostly harmless and exaggerating the frequency of gamebreaking glitches is ridiculous
Go troll somewhere else, Mr Magic, or Trollface. Whatever you prefer. I don't even why I wrote this. I have too much freetime on my hands.