Should chick fil a start being open on sunday as well?

No. It's good that their workers get that day to rest, worship, be with family, etc.

It's a Christian Nazi company.

Don't care. Their food sucks.

dont eat there never did,i make my own food,very rarely will i eat fast food,if someone else pays sometimes ill eat fast food

Why ?????

No. They can stay closed because Sunday is a day of rest.