I think it is you who is struggling to make it clear what point you are making. Not the 2 PP you have quoted now asking what do you want the government to do.
Your original post you said we are a rich country and government should improve infrastructure. Your post before this 1 you said the government don't have the money to extend air-conditioning to every school class.
It is only in this post you said about setting maximum working temperatures. Which does seem the only reasonable suggestion given the billions it would cost to adapt every building to be able to keep temperatures cool for the very few days that would be needed each year.
The money is not there for that. As much as I'm not a fan of the current government, they do provide funding to someway contribute towards global warming, but they can't fund every building being adapted for every situation.
I agree in principle with a maximum heat for working conditions. However problems with that are emergency services still expected to work. Chefs would pretty much never have a day in work. I was in that role for many years, a heat rash halfway through shift was common (even in winter) with temperatures rising to 45 degrees in the kitchen some days. Can imagine there would be many complaints if max temperatures were insisted upon around no emergency services, no care home staff, food barely being served at restaurants, no pubs open to enjoy the beer garden weather, nothing open in tourist resorts, no shops open to collect the BBQ food or drinks for the garden. Then you have got those working in hot manufacturing conditions which is the main reason this impossible be rolled out.
Whenever people look at situations like this, they only think of their own experiences or the most common to them. You can't have 1 rule for most but for the things you enjoy or need, those workers have to crack on
This weather is for a few days. If you don't like it or can't cope (not denying many cant) then phone in sick if you must, invest in your own air-con unit, keep the curtains slightly closed and it will all be over in a few days