The cruise industry is one of the most polluting and damaging industries in the world. It ruins cities worldwide. Their ships are petri-dishes for disease, spreading it directly into our vital cities. They are blocking perfect vistas of the sea. They are ruining local sea life and are spreading non-native species. Their exhaust fumes are extremely detrimental to local air quality in cities. The swarms of tourists are detrimental to local hotels and restaurants, since the swarms only buy souvenirs but lack incentive to spend big money on dining.
And all of that without paying taxes.
Let them go bust. Almost nobody is missing them.