Why doesn’t the United States intend to ‘abandon’ Cuba?

Because Cuba is so close to the US is like the US backyard almost so during the cold war USSR wanted missiles in cuba or nukes this would make all the US vulnerable to a nuclear attack by the USSR but still currently cuba is a communist nation and is worried that enemy nations might try to build bases there or but missiles there this would be a huge threat to the US since these places are so close

Explanation:

according to this text from the preamble to the declaration, who gives men their unalienable rights?

you know i think so yes