Scabs did not work the sort of construction I did -- custom built homes or federally and state funded road projects ( I did stone veneer bridges at times ).

On small remodeling jobs, tract house construction is where there were scabs working but on any jobs with building permits pulled, unless the permits pulled were 'homeowner permits' there was a licensed contractor involved -- building, plumbing, mechanical.

If you know how Comp insurance works and both its audits and claims work you would know that what is said is fact.

There are some few fly-by-night contractors that are unlicensed and uninsured but they don't work on the bigger jobs. By state law here cannot contract nor collect on any job (contract) over $600 in a court of law.