That technology has existed for billions of years: https://e360.yale.edu/digest/planting-1-2-trillion-trees-cou...
I personally calculated that planting trees would be thousands of times more cost-effective than driving Tesla vehicles: https://news.ycombinator.com/item?id=19714034
Cutting down a fraction of industrial activity- which represents a fraction of human-made CO2 output, which is only about 5% of mother nature's CO2 output- seems a lot less efficient than improving upon mother nature's own carbon sequestration schemes. It's better to sequester potentially all of the CO2 in the atmosphere instead of targeting a fraction of a fraction of a fraction of atmospheric CO2