Maybe they are vocal because they don't want to die in their workplace? It seems quite reasonable to have strong view on such a topic. You view humans as disposable resources for making profit. Most of us view humans as human beings. Don't be surprised when your fringe views meet with opposition.

Some recent libertarian deregulation success stories:

https://en.wikipedia.org/wiki/2013_Savar_building_collapse

https://en.wikipedia.org/wiki/2013_Thane_building_collapse

https://en.wikipedia.org/wiki/2012_Pakistan_garment_factory_...

https://en.wikipedia.org/wiki/2012_Dhaka_fire

https://en.wikipedia.org/wiki/West_Fertilizer_Company_explos...