the fuck can you say mobility is op while you're throwing 1000+ range nukes with no turn speed.
nothing like xerath and ziggs and every other mage mid throwing out insane range spells while running away. i mean god forbid melee can actually reach you without burning flash every time. and every other low range mage haas crazy burst or utility. hell ori just has both. i mean fuck, we consider ori to have low-med range because her Q ONLY has 825 range.
suck it mobility haters. talk when darius is an actual competitive pick because hes what you get when you dont have mobility. GP is what you get when you dont have mobility. or just keep complaining, im sure riot will just cave in and give you yet another item to counter something or they'll just nerf ad items or cripple them like boots of mobility. maybe this time they'll give you another 120 AP item that lets you drop a 1200 range, 5 teemo diameter, no dash zone just so you can feel skillful while playing veigar.
i mean wtf. every skill vel'koz has is over 1000 range except his E which is 825 and you want to call him the most balanced champ. jinx, ashe, and ezreal have fucking globals, one of them has one of the best mobility spells in the game, "but muh side-step counterplay, so much strategy.[insert more 2015 trigger words]"
instead of being 1-sided idiots who cant put on eachother's shoes for the sole reason being you refuse to take your shoes off before the other does. actually look what champs have in common that are good.
vi is unhealthy, not because her dash is good, but because she has an 800 range CC skill. name me a single champ with a point-click hard CC ult that ISN'T problematic. ekkos dash isnt his problem, its his ability to be to build a single mana item and basically be resourceless. and his stun has a 3 second cast time quit being bitches about it.
seriously, do you really think riot would let you keep anything above 600, maybe 700 range, if all of a sudden melees with dashes didnt exist?

or are slow
Learn to dodge them, memorize their cooldowns, Xerath's are telegraphed once he starts channeling.
Don't duel them with a melee champion.