I wouldn't say he was our Trump. Our Trump is Clive Palmer, down to the grifting and ripping off subcontractors and employees and suing people.
Abbott was more our McConnell, happy to tear down political norms and standard parliamentary practice while claiming to defend it. He was a "good" opposition leader in that he basically was in opposition to everything proposed by the government, not for good reason, just because.
He didn't last long as an actual leader, because that requires positive actions, not just oppositional or destructive ones.
I think your Trump-Palmer comparison is decent, but not sure about McConnell. Something that seemed key to Abbott was his focus on very repetitive and simple statements - the three word slogans (stop the boats, axe the tax; hardly discouraged "ditch the witch"). Not saying there hasn't been similar before, but he was particularly effective with it. Trump has used similar tactics (build the wall, lock her up, etc), which might've encouraged OP's point.
Abbott was more our McConnell, happy to tear down political norms and standard parliamentary practice while claiming to defend it. He was a "good" opposition leader in that he basically was in opposition to everything proposed by the government, not for good reason, just because.
He didn't last long as an actual leader, because that requires positive actions, not just oppositional or destructive ones.
He won't be missed from our political domain.