Why don't we celebrate Thanksgiving?

Before we start, I'd just like to clarify that I understand that Thanksgiving began as a way for Americans to celebrate everything over on their side of the pond. But why has this Americanised holiday escaped the UK consciousness and yet we're force-fed a new commercialisation of Halloween, Black Friday and Valentine's Day?
    I'd love to just give thanks for everything I have and the people around me. I'm fortunate to have got through some pretty tricky moments in the last few years and am enjoying relatively good health, with lots of good people around me
(at least metaphorically).
    So why don't we take time on Thursday to join our American cousins in giving thanks? We don't have to eat turkey and whatever pies they seem to have invented.
    Let's do it. I'm giving thanks for my children, parents, friends, pets, home, community and work. What are you thankful for?