Mosiach's death didn't change the definition of sin, but it's penalty. Yeshua didn't die so you could desecrate the Sabbath created by G-d at Creation (not Sinai) and eat BBQ pork sandwiches.
Christians who disregards G-d's law because it isn't "necessary" or a "salvation" issue miss the point. It seems to me most Christians focus on justification (Yeshua died for me so I don't have to die) and totally forget and ignore the fact that the very Torah they disdain is the G-d given teacher of the path to sanctification (walking in righteousness and not rebelling against G-d anymore).
But we are digressing again, the point of this post is that regardless of your religious affiliation you have the right under the Consitution to have your religious liberty respected.
If you'd look up what PAUL says, you'd see that I pretty much PLAGIARISED what he said.
Your post would be excellent, if it were not for the book of Galatians.
Having religious affiliation respected is one thing, but there are lots of employers who make work demands on various days part of the job. If I am in such a job, I work when the work demands, and my religion understands this committment. People for whom religion does not provide this relief must seek jobs with others of the same belief or jobs where the understanding as to religious priority are respected. The key to religious freedom does not require that all jobs tolerate all religious beliefs. The jobs need to state the job conditions, and the worker must sign on to the contract. The law does say that religious persecution is prohibited. As long as each worker can abide by the work contract, no discrimination in hiring or wages is permitted. This is not the same thing as saying that once hired an employer must accept everything the worker identifies as being part of his religion,. In this case, one supervisor made it possible to never work on the Sabath, there came a new leader who knew not the ways of tolerance. I don't know if this rises to a lawsuit condition. He may just have to seek a different employer.