Hold up, b_b : aren't there myriad restrictions on contract law that we condone? Consider minimum wage, currently set at $7.25/hour (federally). If an employee wishes to contract to work for an employer at $2/hour, Congress interferes and "tells private parties what they CANNOT do with civil contracts." It seems unfair, or inconsistent, to attack right-to-work laws on the grounds that they restrict contracts when you spare all other such restrictions the brunt of your attack. Or perhaps you do in fact deplore minimum wage (or any of the other thousand examples) as a restriction of contract law?
Yes. Of course there are many restrictions on contract law. Many of them are for all of our benefit. One can make an argument about whether RTW is good or bad. But in your original comment, you framed it as granting more freedoms. It does not. That is a fact, not an opinion.