It appears that in Norway they are already concerned, no need to turn attention any more :)

https://ccsnorway.com/

https://www.regjeringen.no/contentassets/943cb244091d4b2fb37...

A solution for full-scale CCS has now matured that facilitates the further development of CCS in both Norway and Europe. The project has encompassed carbon capture from Norcem’s cement factory in Brevik and carbon capture from Fortum Oslo Varme’s waste incineration facility at Klemetsrud, Oslo. Northern Lights, which is a collaboration between Equinor, Shell and Total, has been responsible for the CO2 transport and storage part of the project. This part of the project comprises ships for transport of liquid CO2, a reception terminal in Øygarden municipality, and pipeline to a well where CO2 will be injected into a storage formation beneath the seabed

edit: formatting

Concrete is indeed a major polluter, your point stands. The world is already experiencing a severe shortage of concrete, it's that valuable. But it's also very hard to switch to alternatives as concrete has the best compressive strength per unit volume and is very well understood as a building material. Plus, it's hard to build high-density housing out of mud huts (buildings require concrete).

Watched a cool video about the benefits of hempcrete last night. Very neat substance with good mechanical properties and it absorbs CO2 as it cures. https://en.wikipedia.org/wiki/Hempcrete

Spreading out would use up so much land that we would effectively destroy the biosphere in the process.