Let me rephrase. The is no "Cuba problem" that the US needs to deal with any differently than it deals with/has dealt with the many other countries in the Americas that have/had people suffering under their regimes who had family in the US.
As far as Cuba in particular goes, the suffering there would be a lot less if the US would drop its 65+ year old embargo and let them trade like all the other repressive regimes it is indifferent to.