Why is Christmas music so perverted?

I have a new client I take care of. I spend about 4 hours a day with her and the entire four hours are spent just listening to Christmas music. I have worked in retail before this job so it's not like I haven't kind of realized this before. The holiday season and the constant same old weird ass Christmas music. It's just like certain lyrics and implications in the music makes me so uncomfortable now that I am stuck sitting here listening to this with no other distraction. So why are a lot of Christmas songs so perverted and have so many innuendos?? It's weird to me how normalized and accepted it is.