If the cycle is independent of any calendar, then why are you freaking out so badly about people choosing to shift it one day and making their Sabbath happen on Sundays?
Because God’s law says otherwise.
Breaking God’s law is LAWLESSNESS.
1 2 3 4 5 6 Sabbath
Sunday is Satan’s counterfeit Sabbath. The Antichrist power (Little Horn, etc...) is the Papacy. Their MARK OF AUTHORITY is the false Sunday sabbath. Anyone keeping Sunday as their sacred day of worship, instead of God’s 7th-day-Sabbath, is first of all breaking the 4th commandment, and second, yielding authority to Satan via the Catholic church.
“Sunday is our mark of authority …. The church is above the Bible, and this transference of sabbath observance is proof of that fact” (The Catholic Record of London, Ontario, Sept. 1, 1923). By keeping Sunday, Protestants submit to the Vatican’s authority over them.