I have been a member of CIPD for over 20 years and every year the organization sends me an email to wish me a Merry Christmas. For the past 5 years, I have sent a message directly to CIPD to ask that this message be changed to a more inclusive holiday greeting. Clearly, this wish is not respected.
As an HR professional, I encourage employers to practice inclusive work practices. Wishing people a Happy Holidays is inclusive as is Seasons Greetings. Not all employees celebrate Christmas and I'm sure that this applies to CIPD members too.
I do not take offence each time someone wishes me a Merry Christmas as I appreciate that this is a message of goodwill. However, this does apply to a professional body such as CIPD. I see little value in writing about the value of inclusivity if you are not willing to practice this yourself.
Wishing all members of CIPD a peaceful and happy holiday season.