Sending migrants to a luxury resort Island sounds a lot better than locking them in cages, don't ya think?

What makes you think the migrants sent to Martha's Vineyard would be placed in luxury housing? Just because you're physically in a location doesn't mean you can afford to live there

It's true, they aren't necessarily gonna stay at luxury hotels however they did get sent to a military base in Cape Cod that has decent bunk beds and they are being well fed in the cafeteria: https://www.google.com/amp/s/www.dailymail.co.uk/news/article-11220963/amp/Cape-Cod-military-base-50-migrants-chowed-shipped-Marthas-Vineyard.html

That's something at least

Air BnB is used elsewhere, use them there.