Honestly, I think it'll be worth drilling the fact that it's the Republican Party, not just Trump. Otherwise, folks deep in the cult will just use the current figurehead as a scapegoat for everything wrong with the party without acknowledging that the party itself works against them.
They probably will, anyway, but it's worth a shot.
I mean, yes? Although generally speaking, the word execution is reserved for cases where they've been deemed to deserve it.
For example, most of the executions ordered during the Reign of Terror during the French Revolution were simply murders of people who were even suspected of dissent.