My deepest sympathies at the loss you have suffered.
"...experts have argued that Cuba was not enough proactive in attracting more U.S. investment..."
I would strongly caution you on what you wish for in such regard. The Ukraine has been very proactive at attracting US investment. It's about to get a few more hundreds of billions of dollars worth of investments. May Cuba be spared such investments forever.
"It may be dangerous to be America's enemy, but to be America's friend is fatal."--Henry Kissinger.
Thanks!