Swimming takes on a new meaning when you have those bulky style korkers on, along with waders, a loose belt and an $800 reel.
I think a better question is ...when the time comes to decide to lessen the load, will you do it in time?
When you get swept off that rock and can't find solid footing, will you be quick enough to kick off your korkers, will you give up your possessions before it's too late?
I'd have to guess NO, as most will
think they will find that necessary footing in time to get back up...as the pull of the next wave takes them further away from the rock-pile possibly lifting them up...only to drop them violently against it.
It's one thing to think about what you'd do from behind your keyboard...it's another to actually live through it, and believe you did the right thing by giving up your gear.
I for one, will have a hard time giving up the gear...so when you read about me in the Obituaries....it was because I wouldn't give up my gear to King Neptune.
...but back to your question, YES....I can swim, and truly feel comfortable when in the water in the right attire. Have to say though, I never tried swimming in waders with heavy boots on, while holding my gear.

.....although swimming neked scares me the most....