I read it all (very, very short guys, c'mon) and I think I pretty much agree with you.
Your game preference is decided from the a) the things you enjoy b) your own choice c) what you've ALWAYS liked (childhood likings or whatever). You choose the games you're going to like of course; if you only like FPS's then you aren't going to go out and buy "Peach's Fun Super Adventure" wrapped up nicely in a pink box with a ribbon. Your own choice of course can take a role as well, even if you ONLY like FPS's, your friend might be telling you how great RPG's are, so you're convinced and you buy an RPG. Than there's the childhood influences. As "gay" as this may sound, there's ALWAYS going to be a place in my heart for Pokemon. Pokemon is what I grew up, it brings back so many memories, plus it's a load of fun. I don't give a damn that other people think it's gay, I like playing Pokemon.
I agree 100% with how a lot of people love FPS's because of the thrill: the thrill of being able to command life. You can choose to live or let die, and it doesn't matter which you choose (technically) because you can just restart the level from your last saving point and redo it. These things, like you said, fascinate the mind and give us that adrenaline when you turn that dark corner (of course if you die, you're ready for it next time

) and find a gang of muggers about to...well, mug you. You die, you laugh, restart. It's like a small portion of being invincible, which people like.
Nice to see you back Turkmaster.

You've been gone a while.
*EDIT*
I have the same problem at times as well, no worries.
He just means "the general public". Everyone loves that adrenaline it gives you, at least most everyone.