Principles of classification of English consonants. English consonants/types of consonants

The letter E in the ve in “solve”, the se in “house” and “please”, the ce in “dance” and “ocean”, the ze in “sneeze”, the the in “soothe”, the ed in “jumped” and “hummed”, the dge in “smudge”, and the che in “avalanche”.
The letter I represents the sound “y” in words like “union” and “brilliant, plus it’s in the ti in “motion”, the ci in “social”, the si in “pension” and “version”, the gi in “religion”, the sci in “conscious”, the ssi in “passion”, and the xi in “anxious”.
The letter U is a common way to spell the consonant sound “w”, as in “queen” and “penguin” (we usually write qu and gu, not kw, cw or gw), and is also part of the gu in “guess”, the gue in “league”, the qu in “liquor”, the que in “boutique”, and the “bu” in “build”.
The sound “you” as in “human” is actually a combination of a consonant and a vowel (y+ooh), though it’s mostly spelt with vowel letters: U as in human, U…E as in tune, EW as in few, UE as in cue or EU as in feud. Nouns that start with this sound like “unicorn”, “ute” and “Europe” thus start with a a vowel letter but a consonant sound, which is why we say “a unicorn”, “a ute” and “a European”, not “an unicorn”, “an ute” or “an European”.

Vowel sounds spelt with “consonant letters”

The obvious one here is the letter Y, weirdly called a consonant letter despite mostly representing vowel sounds, in words like “my”, “duty” and “gym” (no, I haven’t been doing enough exercise lately either).
This probably happened because traditional phonics focuses too much on first letters in words, where the letter Y represents a consonant sound (except in words like “Yvette” and “yttrium”).
On top of all this, there are heaps of vowel sounds spelt with two, three and four letters which contain “consonant letters”, mostly the letters W, Y, R and L. Here are some examples:
The letter W is in the aw in “saw”, the ew in “new” and “grew”, and the ow in “how” and “show”.
The letter Y is in the ay in “play”, the ey in “grey” and “valley”, the oy in “boy”, the ye in bye, the y…e in “type”, and the yr in “myrtle”. All four letters representing the vowel sound in the word “myrrh” are supposedly “consonant letters”.
The letter R is in the ar in “car”, “warm” and “scarce”, the er in “her”, the ir in “bird”, the or in “fork”, the ur in “curl”, the air in “hair”, the are in “care”, the ear in “hear”, “learn” and “bear”, the ere in “here”, “there” and “were”, the eer in “beer”, the oar in “soar”, the ore in “sore”, the our in “pour”, the oor in “door”, the eur in “poseur”, the aur in “Minotaur”, and in the English I speak and write, the r in “flour”, re in “centre” and our in “harbour”.