Look, okay, you want "Right to Work"? Fine. Here's the deal that should be made. If you decide not to joint the union in a union shop, you are not covered under the union contract and your employer can not use the union contract as the basis for your pay or benefits. Also, you do not accumulate seniority (placing you at the bottom of the list no matter how long you work there, until you joint the union - seniority would start accumulating when you join the union). You are not covered under union rules for redress or position protection. You are not entitled to union representation during reviews or disciplinary matters. Nor are you dismissed for union activities (if you have them in your shop). You are "Right to Work" which means "at will" work. Also protect payroll deduction for union dues and pensions. Seriously, this is why you have a payroll department or service (and if you don't, more than likely you're not big enough to have a union either). Accept those terms, enforce those rules on business, and sure, I'll accept "Right to Work" legislation.
If not, Right to Work is an entitlement program benefiting people who contributed nothing to the program to begin with. And aren't conservatives morally opposed to "entitlements"?
Edited to add You know how in 2010 the Tea Party and other disaffected conservatives voted in majorities of Republic legislatures, governors, and the House of Representatives to nominally put our nation back on fiscal track. And then those new Republican majorities set out to strip women of their reproductive rights, deny gays equal protection under the law, and make futile votes to "Repeal Obamacare"? You know, everything but passing a budget that could work, making tax reform work (that mythical rewritting and simplifying the tax code that's been in the works since, what, 1996), and "righting the fiscal ship of state". So now it appears these two years will be devoted to "how much of the state can we dismantle to give employers their right to screw over their employees as much as possible." This is why whenever any conservative touts how they're "more fiscally responsible" then those tax and spend liberals, I've taken to laughing in their faces. The GOP is no longer focused on the fiscal stuff. They are social conservatives (who really aren't "conservative" as much as "retro") 24/7/365. It was my hope the Tea Party might skew them back to fiscal matters, but they've also been co-opted by social conservatives.