What a great attitude to have despite being disappointed twice now! I hope you're able to have a wonderful vacation in the U.S. somewhere.
Depending on what you and your husband like to do, it could be fun to drive down the California coast and stay at a few coastal bed-and-breakfast inns. It's not the same as beautiful Ireland, but it will offer some stunning ocean views, a relaxed pace, and it's only a domestic flight away.
The good news is that many CA residents are vaccinated, so that might make you feel a little better than traveling to places where fewer than 50% are vaccinated. If you stay in a big city like SF, it's at about 70% but many of the smaller coastal towns have lower vaccination rates.
I hope you have some fun planning a great trip. I find half the fun is researching the options!