Did Paul, in Galatians 1:6, say "I am alarmed because you are keeping the Sabbath and holy days"? No, he said "I am alarmed because you are turning from the gospel." The Gentile Galatians were delivered from their bondage to Satan, and to his demons, and sin, and the world. But they were being deceived into going back.
There is a spiritual warfare going on, and Paul clearly perceives this as vital to our understanding if we are going to succeed in this way. There is a war going on against the principalities and powers. It is not God against them. It is us against them! They are trying to get us to go back to Egypt, and we have to fight—discipline ourselves; stay within the truth of God—to stay out of there.