If you have been looking for work and not finding it, then it's not really your fault, and he shouldn't call you "pathetic".

Back when I was out of work (some years ago), there was a couple of months when I couldn't be bothered to look for work, and even then my dad didn't call me pathetic.

I think parents are supposed to give their kids support - calling them "pathetic" doesn't quite fit the bill. Has your dad given you any ideas about how to look for work or where to look? That would seem more constructive to me.

Regarding your collection, I think that's a separate issue. If in his eyes "not having a job or working" is the problem, why is he lumping that issue with your collection? To me, these two matters are distinct.

I would suggest holding onto your collection, because even if you sell it off and contribute the money to the home, what's to say that you won't still be criticised for not having a job?

If you haven't started looking for work, just do it, even if it feels boring (I know I felt that way about looking for work during the dot com bust back in 2002 - especially when you keep looking and no one wants you, it can make a person feel hopeless). At least this way you will remove justification from his criticisms.