Have a leftest friend who said she's looked into the Cuban protest and doesn't think there is any outside involvement. Obviously a lot of signs are there but I suck at articulating ideas, if there are some good sources I could send to her it would be great.
Edit: thanks for the info, looks like she was closer to correct then I was.
There's a ton of good advice here, especially advice pointing out that many of the protests are real and address real concerns about life in Cuba.
However, it is very likely that if the US tries to convert this energy toward regime change (I hate the phrase 'color revolution'), the real proof that it happened won't be revealed until years or decades later. Unfortunately, many people are reluctant to put two and two together and accept the conclusions of a material analysis here.
You'll get a lot of satisfaction telling people "I told you so" in like 15 or 20 years, though.