St. Patrick's Day is a religious holiday:
[link to www.independent.co.uk]

Thanksgiving started out as a religious holiday:
[link to rtoz.org]

Christmas is a religious holiday:
[link to news.cnet.com]

Halloween is a direct spin-off of All Saint's Eve; a religious holiday:
[link to indiatoday.intoday.in]

I don't think they don't care about religious holidays...they just don't want backlash from the ones that line their pocket. So sad that money, which is only as real and as worthy as we make it, is what directs people to do or not do.