It is good that you are so careful in analyzing not only Trump’s stated positions but also his thought processes behind them. So, tell me again who you are for?
It doesn’t really take much careful analysis to say that Trump’s statement that single payer works elsewhere is (i) wrong, and (ii) inconsistent with his other statement that it wouldn’t work here. You’re either for single payer or against it. Trump’s wishy-washy “well, it works there but wouldn’t work here, because.....reasons” position is absurd.
And I support Ted Cruz. Who, to my knowledge, has never advocated in favor of single payer. Anywhere.