Earlier quoted context omitted.
At the risk of sounding like an "I told you so" type of person, it is frustrating to speak out and see others speak out about future consequences of these kinds of actions, only to be drowned out by people liberally applying the slippery slope fallacy argument.
I've never understood how a slippery slope argument is a fallacy, let alone a logical fallacy (like false syllogism or no true scotsman). The idea is essentially looking at current trends and extrapolating into the future. No prediction is necessarily correct, but it's not necessarily wrong either.
The main one though is assuming the parties cant adjust course part way though. "If we turn this ship this way we will crash into that island in two days!"
Extropolation is different as it takes into a account changes in behaviour and real world constraints