If the OP has data on what he's talking about then maybe the discussion will be very interesting. I don't know, but December this time is not very good for the crypto industry, obviously it is because of the FTX and FUD problems that are everywhere.
If December has always been better than any other month, then bitcoin should be trading over $30K by now before the end of the month. But so far I haven't had the market recover above $20K, so I don't think this December will be any better than June, July or August.
Not every year is the same, and people forget that and OP made that mistake as well. I mean normally in 2017 we have seen it go up so much right? So does that mean it will always be good in December? Well no, because in 2018 we have seen it not do so well and go down, but in 2019 it was stable give or take, but in 2020 it went up right? However in 2021 it was lowering.
So, as you can see it is not always the same and sometimes it goes up and sometimes it goes down. This year it looks to be quite stable, sure there were some drops but nothing big, just tiny enough to not even mention, and I am not seeing any increases neither so it will stay like this if you ask me.
People shouldnt forget that on which you shouldnt really make each year to be that the same which not all month of December would really be that totally good.This is why people do really make out those kind of
being annoyed or frustrated because they are really expecting something positive neither on Bitcoin or altcoins when month of Dec do approaches which is something not that recommendable.
We've seen the worst months or years which we should really be getting used to it because this is how this market works and how it do behaves which isnt something new.
Expect the unexpected because those things we do have in mind doesnt always ends up for it to happen.