Can CO2-derived chemicals matter at climate scale?

Chemicals are probably the most plausible high-value use of CO2, but the market-size question keeps pulling the climate claim back down to earth.

Katelhon et al. is a useful starting point for mitigation potential in chemicals: doi:10.1073/pnas.1821029116. Hepburn et al. gives the wider utilization and removal comparison: doi:10.1038/s41586-019-1681-6. Artz et al. ties catalysis to LCA nicely: doi:10.1021/acs.chemrev.7b00435.

What is the fairest public claim here: "climate-relevant", "lower-carbon feedstock", "niche abatement", or something sharper?