lol wtf u smokin, m8. >implying garchomp runs stone miss over fire blast for extremely decent coverage and accuracy
Also all that you've said till now are only dragons aren't good competitively, and their inability to deal with Ice, and how UU mons can deal with them and whatnot. You're not correct, you know. Dragons are OU for a reason: their incredible movepools and their stats. You claim Glaceon could handle Garchomp before, why wouldn't a standard Garchomp expect Defensively Ice types and use Fire Blast? You can argue, >m-muh faires and their s-stab moonblast and bulk
NO. Iron Head and Flash Cannon is a thing now. Even if it doesn't KO your Fairy eevee thingy, it'll still do about 60% forcing you to switch out or let it die the next turn. You can bring all your UU mons into OU, and dragons won't be the only thing there. Usually a steel type like Scizor deals with what the dragons can't and the dragons finishes off the game. Dragons don't need to be SE to anything, it just need to be really hard at hitting, which most of them are! (Save altatria- the thing hopeless).
Therefore all that you've mention obviously didn't go through your mind before you typed.