Full Idea
There is anti-realism with regard to unobservable entities and the theories that purport to mention them, but the more plausible version attaches to theories concerning what laws of nature are.
Gist of Idea
Anti-realism is more plausible about laws than about entities and theories
Source
Alexander Bird (Philosophy of Science [1998], Ch.4)
Book Reference
Bird,Alexander: 'Philosophy of Science' [UCL Press 2000], p.138
A Reaction
This sounds right. I certainly find anti-realism about the entities of science utterly implausible. I also doubt whether there is any such thing as a law, above and beyond the behaviour of matter. Theories float between the two.