We have visited the Islands (all three) since 1978 and have experienced both true Cayman culture–which we fell in love with–and cruise ship culture, which we find awful.
I have personally asked cruisers what they were doing in Cayman. Not one could tell me anything of the culture or history of the Islands, nor did they even know there were Sister Islands.
We have dived on all three and thoroughly enjoy visiting with friends on Cayman. The cruisers detract from the islands badly, plus add to pollution, overcrowding and indifference to the beautiful Cayman people..
We are definitely in favour of limiting the number of cruise ships.