So on a normal day you just leave the lights on all the time? You like watching TV with all the lights on? I am assuming there is a kosher TV.
I actually prefer TV with the lights on.
Normally, yes, people are used to flipping lights on an off, but what I think you're missing is that Jews for 20-30-50 years have gotten used to not going near switches 1 day a week. So to now tell people they can flip a switch on Shabbos is going against their "normal" tendencies. I just don't see what the whole hullabaloo is.
Ever forgot to turn your bedroom light off before shabbos?
That's a good example of when this would be useful, but it's definitely not something that I'm like OH NO, I WISH I HAD A KOSHER SWITCH.