Lana -- my husband, ALSO, says "We have to get rid of stuff"! Years ago - he would say - "I'd like to back up a truck - and throw stuff in -- to go to the dump". (Since then, I've made a lot of progress in decluttering. So he doesn't say that anymore!). Somehow -- after dh makes a very firm statement about decluttering -- he seems to feel -- that he has done his part!
Sometimes -- when he is comfortably sitting on the couch, watching basketball.. sometimes I can bring him some books to go through. Or some other, very limited number of items - to consider - getting rid of. But that is about the only way that I have been successful - in getting him involved in decluttering.