Nah, there are a lot of legitimately good kickboxing schools. They're just more limited in the strikes they use than Muay Thai. However, I do agree with you that Muay Thai > Kickiboxing.
Aikido only works on semi-compliant opponents. So it is useful for low-level law enforcement, mental health professionals, et cetera - basically on people who are resisting but aren't really resisting.
That's a good thing; practising kata forms is an obsolete method of training. Hell, kata weren't even originally meant as a learning tool; they were meant to preserve techniques in an age before widespread literacy, video, internet, et cetera.
I've sparred with many Aikidoka. They all robotically (awkward movement; it's obviously they practise rigid forms more than spar) grab for your wrist, off-balance themselves in the attempt and get foot-swept.
Haha, you like Brazilian Jiu-jitsu now? I thought all we did was hug eachother in pajamas?