English orthography is awful. Hard "c" AND soft "c"? Are you crazy? How about that "k" that is already the hard c sound? It should be "kat" and "kar". And it only goes downhill from there (or their?!?).
We should clean it up someday. But we'll probably end up with LOL-WTF-speak.
Some of the low hanging fruit would just be to pick one pronunciation of "oo" and stick with it:
book
blood
floor
brooch
boot
The problem is that English has far more vowel sounds than vowels. And that's without even having certain sounds that are common in other languages like "ü".
Linguistics would teach that it is the orthography that is flawed. The English language has many vowel sounds, more than most languages. But as you demonstrate, the orthography "lumps" many of them together. Which, again, is why I think English orthography is awful.
Thanks, I really like the IPA and I wish it were something that was taught in high school. It would be great if people were competent at reading it and could maybe use it to explain how something sounds. It's hard enough that English has such flawed orthography. Then you add the fact that there are dozens of English dialects and it only makes things more complicated.
Do you know about Dr. Geoff Lindsey's YouTube channel?