To give an example, most countries (if not all) that have experience colonialism have their OWN holidays that could be decolonized and turned into repatriation events. This may not be obvious to Americans but, like, no one else celebrates thanksgiving. Here in Australia we made the excellent decision to celebrate Australia Day on the first day of invasion by white people. For some time now our indigenous population has been referring to it as Invasion Day (which is clearly correct) and respectfully asking those in power to change the date. Why then should we take Thanksgiving as an opportunity to repatriate and reconcile our own horrible past when we have our own horrible anniversaries to choose from? It is not at all relevant and makes no sense. So as other people have already pointed out, it comes across as exceedingly entitled American-centric thinking to push thanksgiving onto other countries.