[Wingnut]

I'd be disgusted with his language and attitude whether he was a member of the Church or not, or a Priesthood holder or not.

It's not up to you to decide his worthiness. If you are concerned about it and feel that you cannot ask for a blessing from him or are not comfortable doing so, there are a few options.

(1) You could ask your home teacher(s) for a blessing. This creates a bit of a sticky situation, though, as they will wonder why you don't just ask your husband, whom they know is in the Eldre's Quorum Presidency.
(2) You can make an appointment to meet with your Bishop to discuss with him your concerns about your husband. Tell him about your efforts to already share your concerns with your husband, and if you are right in assuming he is unworthy. You Bishop can help guide you in what to do with regards to your husband.

Unfortunately, this sounds a little less like a behavior issue than an attitude issue. Attitude is harder to change.