So paying higer profit share or wage to construction wokers won't encouage more people to spend more time building stuff?

Did no one tell you about how competetive markets work? supernormal profits get bid down by market entry.

banks and oligopolistic top tier construction companies, and landowners don't want more construction, or entry into the market.

by your logic we should just offer people slave contracts and they'd opt in.

Holy fuck! That's not the fucking point! The time to end up with a finished product is the fucking same no matter how much people are getting paid! Your screws and nails don't go in any faster! You can't type faster than your fastest typing speed! You can't call more than one client at a time! You're just paid more but the work isn't accomplished faster!

That's really not correct. Like, what you are saying here:

Your screws and nails don't go in any faster!

is literally contradictory to reality.

Automation and technological advances literally make work more productive. A carpenter getting a share of the value of their labor that is both keeping pace with inflation and productivity would mean that they can invest in newer tools and equipment that can allow them to accomplish more in a safer manner in a shorter time. They could, for example, purchase a cordless framing nailer and spare batteries, eliminating the need to setup a workplace generator and pneumatic compressor, which would need to be moved periodically as they work. It also eliminates the hose as a potential workplace tripping hazard. Assistive robotic exoskeletons increase carry capacity while reducing strain on joints, reducing likelihood of injury while increasing efficiency.

You can't type faster than your fastest typing speed!

But you can automate repetitive tasks, allowing more to be done in the same amount of time. More resources allow one to invest in their own or others' knowledge to accomplish that.

You can't call more than one client at a time!

This is true. But how many calls or meetings really are needed and can't be sorted via email or Slack?

You're so blinded by rich people that you're unable to analyze the rest of the issue!

I think that you may be projecting a bit here. I'm just tired of the bleeding of the working class that has been actively in progress in the West for the last half century at least. I'm happy to dig into the slews of data showing how and why people are worse off than their ancestors and where that money has been going (spoiler: the wealthy have been hoarding it and continue to insatiably claw back more via price gouging and wage theft).