Nope, just moved here a couple years ago from the states.
Most people I know here seem to think it's annoying, but I work at Google, so we got people from all over, I don't think Germans are even a majority of the devs.
If you're working weekends and your days off are on weekdays, this principle still holds true: stores are still available for you. So I'm not sure what you're getting at here.
I am a certified German and most people very much enjoy the six day week (de-facto five day week if you're in an office or unionized), though some people inexplicably want to do "sunday shopping".
Sunday having a protected status is actually part of the Grundgesetz (~constitution).
You did not. You posted a poll asking "Hey, would you like to go shopping on sundays?", which for the huge majority of people is a different question from "Hey, would you like to work on sundays?".
Most people I know here seem to think it's annoying, but I work at Google, so we got people from all over, I don't think Germans are even a majority of the devs.
edit: apparently 61% of Germans think stores should be able to decide themselves whether to open on Sundays: http://m.spiegel.de/wirtschaft/service/einzelhandel-mehrheit...