Agreed that the transferable skills are zero from a marketing of yourself point of view.
Every pilot I know who needed something in the way of work has found something, usually in an entry level causal job or working for themselves doing a variety of non skilled work.
The struggle most had was convincing an employer they were not about to walk straight out the door of thier entry level labouring job as soon as the phone rang from thier airline again - which of course they will.
Cant blame an employer for over looking them in that regard, but persistence paid off in the cases I know of and others went and became thier own boss.