if anything we gain trade.

Well, nearly every time (and it's come up something like 30 times), only 2 countries vote against this measure – the United States and Israel. Every other country basically sees the blockade as criminal. It has been a complete failure in its goal (bringing down the government of Cuba) and only hurts the people of Cuba. The very people the US claims to be so concerned about. It's hypocritical. Ending the blockade would give the US more legitimacy in the world when it comes to national sovereignty.