Watching and playing are very different beasts. You hardly notice the movement when playing and it just ends up feeling really responsive.
You'll get used to it in no time at all.
The game is meant to be played, not watched :P

It is a very quick game, but at the same time, after a couple rounds it feels like second nature. It certainly plays faster than COD or the like, but I didn't find it stressful at all when I played it and with COD at times I do.
It's a different game and worth a try. Best advice I can give is to try the next testfire if it's possible for you.
It made me excited, but not nauseous or stressed as you are worried about.

I don't know how you think I can go off on a tangent or miss the point in my own thread. I've tried to steer it back on-topic multiple times but you keep focusing in on one thing I said. You didn't really grasp what I was getting at. You are the one who used the phrase "constant input," which is not the same thing as "doing something constantly." I don't consider holding a button down to be actively engaged in a game. I gave a half-dozen examples of how like enjoy playing games, contrasting different playstyles in the same games as well as in different games, and you have ignored all of them to pursue some kind of semantic offense I have committed.

If you have any thoughts or suggestions you'd like to share relating to my concerns about Splatoon you are welcome to voice them. If you would prefer to continue your bizarre tirade then I'd like to ask you to leave.

I've already lost arguments, but generally yeah that happens because they're put into a position where they have to either

A.) Admit I'm right/they're wrong

B.) Look silly as any more arguments they bring up are blatantly wrong/rehashed even to onlookers

or most commonly

C.) Run away

I wouldn't say it makes me feel dizzy, it does make me feel something but dizzy isn't it

Oh gawds! I'd better run before I die of laughter!

I knows and you need to do another evaluation of the Nintendo community!

That would be preferable, though I suppose either outcome suits me fine. Again, at this point you're just pettily obsessing over my choice of words when I've offered more than enough examples of what I meant to not be confused.

Or do you honestly think Mario Kart on any level is comparable to high-level play of twitch shooters and RTS? Because that would be something worth dying of laughter over.