So why is Obama making nice to Cuba?

Well, it looks good to the lefties in the Democratic party, but do ordinary Americans  approve? Or care?  I think most Cubans in the country are refugees from Castro, and would be happier to nuke Cuba than to recognize Cuba.  I suppose Obama will get some "legacy" out of it, but does the US as a whole, not just Obama and his cronies, get anything out of it?