Years ago when I was young and poor, my car had a radiator leak. A new or repaired one wasn't in the cards then, so I cleaned the area off, and ran a nice thick bead of blue RTV on it.
That fix was still working years later when I sold it.
I think of silicone as a forever sealant.
the fact that it is so hard to remove, is what makes it so. Obviously it has it's place.Using it in a situation where one expects to have to remove it is problematic. All of my new RVs have had silicone installed in SOME areas from the factory.
This has not proven to be a problem for me, in over 30 years or RV ownership