No, not at all.
A cruise ship is a floating petri dish.
Leaving my house, I have control over how I go, where I go, what I do, how I react to my surroundings, when I return.
To say “avoiding Cruise Ships” = “locking yourself in your house”....
Do I really have to assign an adjective to that reasoning? Or can you figure it out for yourself?
A plane is worse.
What you should do is quit being hysterical. Statistically speaking you are much more likely to get sick while not on a cruise than on one. Don’t let Fake News rot your brain. Mkay?