I do agree that the ninjas have the total advantage over the other characters.
Well, you're wrong. The ninjas have varying playstyles and advantages/disadvantages, and are not universally above or below the roster at large.
Now don't come out me with the "OMG Leifang, Christie etc can do that too!" because Leifang and Christie don't teleport and they don't jump over you. Leifang has the Unshu and Christie has the jakhehio. Ok, Leifang Unshu parries and Christie's jakhehio evades very well. The ninjas (most likely talking about Kasumi and Ryu right here) can teleport right behind you, rape your back, and launch and do a half life combo.
Okay first of all, Ryu can teleport behind you one of two ways: 1) via a free teleport with insane recovery so that if you get hit by something from it you deserve any sort of shameful follow-up imaginable 2) Via the ongyoin parry, which also has a fair amount of recovery frames. Also, given that everyone crushes from BT and is a good bit away from you (having done an attack that you parried which provides them notable lurch more often than not) you're a good bit away and your fast mids don't possess a whole lot of range. Thus, you get nothing guaranteed off of it. The best follow-up I've seen used consistently is 33P4 which is not going to net you a half-life combo (or anything close, unless the environment is really helping you out). From that you evade high/mid, as long as your timing is good.
Christie evades all high, and mid-low non-tracking, and has a bunch of mix-ups. If you evade an attack with JK you can get a solid punish consistently, unlike Ryu's gimmick parry. Such follow-ups include stuns and other dangerous set-ups. Lei Fang's got ridiculous stuff I won't get into.
As far as half-life combos go, sans environment, PBs, PLs, etc. Ryu has no NH half-life combos. Can he net more than Christie? Probably (a Christie main can correct me; Ryu gets about 138 max with incredibly impractical set-ups). Now, BT options do net the CH options, but so will JK evade-bait punishing. And, considering Ryu's speed and mix-up options, he should net higher damage than Christie and Lei-fang. It would be absurd if he didn't.
You can SS everything out of Leifang's Unshu (not the grab) and you'll be ok. Christie, pretty much everything from the jak is unsafe so thats a free throw punish. I'm not saying throw punish is the best option (which it pretty much is if you're the slower character with less tools) against Christie and the jakhehio because she goes up and down and is hard to read.
Well duh if you're getting your JK stuff blocked it's unsafe, just like if your opponent turns around with Ryu's teleport and blocks you're gonna be unsafe. We're looking at consistent damage capability and Christie's JK has it, no doubt.
But how many people play Christie correctly anyway?
How many people play Ryu correctly?
Meanwhile, Kasumi and Ryu teleport right behind you and get like twenty hundred guaranteed things.
Oh please, enlighten me as to what options are guaranteed from Ryu's ongyoin parry. Seriously, I'm dying to know.
Ryu has the Izuna drop which they all spam "because its cool!" -_-.
Sure is. Suck it.
Ayane and Hayate aren't all that bad to be honest. Ayane is just good at making you whiff moves and holds, thats the only annoying thing about her. Hayate just has good pressure and spacing, he isn't that bad also. Plus he's unsafe as hell so thats a plus.
Kasumi is also unsafe as hell. So is Ryu, save for the ongyoin mix-up.
Ayane is good at way more than making you whiff. She has godly crushes, insane mix-up with strings, delays and cancels, gets solid damage off of minimal launches and is better at getting behind you than Ryu is. If you don't believe me, you need to fight better Ayane's. 6P9-type strings are everywhere, and her placement gives her better follow-ups. "She has recovery." SO DOES RYU! She also has holds and other junk that leave you BT. And, btw, also has a stratosphere launch (psst: so does Hayate). Hayate's got a whole bunch of mix-ups including... wait for it... A MOTHER-FUCKING TELEPORT THAT LEAVES YOU BT.
"Oh, Ryu and Kasumi have a total advantage over the other characters. But Ayane and Hayate don't. They're fine."
C'mon man, cut the bullshit.
Also the ninjas have like 2 or 3 holds that throw you into the stratosphere and get a kill combo and shit off of it.
I know you're exaggerating for dramatic effect, but that's exactly why your argument sucks. Ryu's getting about 80 damage off of a "stratosphere launch," which is less than 1/3 of the damage you were talking about. When you stop exaggerating, all this stuff you complain about just don't seem that ridiculous.