I was exaggerating to make a point, but if you want to limit it to strictly gaming, let me know when you become a professional Starcraft player in Korea just from practice and experience and I'll believe what you say.
The Korean SC player analogy is probably a good one here, because those SC pro players are doing 300-400+ things with their mouse every minute. You have a train a lot to become a pro SC player and that's where practice and experience come in, but if anyone could do it, the pros in Korea wouldn't make the bank they do.
My point is that fighting games require a certain amount of natural talent and ability, especially with regards to reflexes and ability to perform complicated finger movements perfectly with exactly the right timing. If anyone could do it, the FGC would be a lot larger than it is today.
Look, as I get older, I realize that there are things that I am never going to be able to do. I'm too old and out of shape to ever be an astronaut. I'm too bald to ever be a hair model. My feet are too big to ever be a ballerina or a tap dancer. I'm never going to be a rock star, a professional hockey player, a pornog star, or any number of professions that require more than just a can-do attitude to excel in.
However, because I have all my fingers, a functioning brain, and don't mind getting the shit beat out of me by better players, it is conceivable that with enough practice and training, I could win an EVO one day.
That's what makes fighting games great. When I lose in a fighting game, it's not because my fingers were too slow, or my stick was cheaper than my opponent's, it's because I wasn't good enough, and the other guy was better. What's the solution to this problem? Get better. How do you get better? Practice.
Those Korean SC2 pros weren't born with any extra appendages that help them play SC2. They literally got to where they are from practicing 15+ hours a day, seven days a week in quasi-bootcamps. Boxer wasn't playing BW in the womb, his success is due to him playing and practicing and studying and basically doing nothing but living Starcraft for his entire professional career.
I see this defeatist attitude of "oh well I'm just not good at fighting games and that's why I don't play them" and it honestly boggles my mind. It's probably the one genre where player skill matters more than anything, and people completely write themselves off from ever playing them because they require a bit of hard work. Yes, 1-frame links are hard. Yes, reading incoming mix ups can be hard. Yes, never winning even one round in your local ranbat week after week can be morale kryptonite. But the people who can do these things aren't any different from you. They just want it more.
But, if having to actually practice and try to do well at a videogame bothers you, I guess there's always Idolmaster.