I don't think it would help, especially in the house. Keep him crated or separated for the holidays unless you can leash and closely watch him.
If he is separated he screams, barks, howls, and slams himself into doors/dig against them, it's not something we can have happen when we have company. He is ALWAYS leashed to me and I spend the entire time watching him closely when we have people over he does not already know. It's just annoying when you tell people like 5 times not to touch him, to ignore him, and they just do what they want. Though the near bite incident that occurred this summer has gotten around the family a bit and now certain people are terrified of him, which isn't what I wanted either. The only way that I could have prevented that incident was to have literally screamed at the person (since I told him to stop as he reached for Tucker (and had already told him several times earlier that he was not friendly and could not be pet) and he blatantly ignored me) or made physical contact with the person. Which I guess would have been better than risking a bite, it just goes against all of my social instincts. I had my guard down too, Tucker was laying quietly beside me eating bird seed off the ground, I was talking to the guy about random stuff, I had already very, very clearly explained to this guy earlier that Tucker was not friendly (my dad told him too), so I really didn't expect him to try and pet him. I just feel that maybe if there was a shirt with a big "do not pet" right where the person's hand would go it could have prevented something like that.
Honestly the only thing that would be 100% safe is me and Tucker locking ourselves in a room. He wouldn't be silent (he'd go off every time he heard their voice-we did this over the summer when my brother had people over, the poor dog looked like he was having a 4 hour long anxiety attack the entire time people were here and they weren't even on the same floor as us. He paced and panted the entire time and if he heard a voice he barked his head off. I gave him a doggy frozen yogurt but he wouldn't eat it, I was on the verge of tears by the end of the night) but he'd be better than if he were by himself, and he couldn't hurt anyone. But then I'd miss the entire party, which is fine for certain things, but not really Christmas. but if I had to choose between confining him by himself (even if no one could hear him) and missing the party to be with him, I'd miss the party. I honestly think confining him by himself in the house while he knows there are strangers there is akin to torture, I think he'd hurt himself trying to get out.
This Christmas we are probably only having people he knows over anyways...my grandparents and one of my aunts, so I don't think it's going to be a huge issue this year. We rotate the "big family Christmas" through all of the aunts+uncles and we are not hosting this year.
I don't know, we just want to try and keep people safe while still trying to enjoy the parties. He is fairly calm if he's leashed and people ignore him, a lot calmer than if he can't watch the people, but it's obviously less safe to have him out than to have him confined.