The full quote was that he was going to be a dictator but only on the first day. It's probably one of the dumbest things he's ever said, but the fact that he put a limit on his own supposed dictatorship contradicts him being a dictator. At any rate, while I'm not a fan of what he said, he definitely did not preclude the continuation of American democracy even if interpreted in the most literal possible way.
> this is the last vote you will need
He said that you [the people at his rally] aren't going to need to vote anymore because hes going to accomplish all his goals this time. Not that there won't be a vote or that his supporters won't be allowed to vote. They definitely won't be allowed to vote for him since he'll be at up against the term limit.
> we should stop so and so from voting and so on
This one I've never even heard before outside of him claiming that his opponents want to let non citizens vote
> They definitely won't be allowed to vote for him since he'll be at up against the term limit.
I'm sure if Trump were younger and up against term limits, he (and his party) would simply ignore them or change the rules. That's the kind of democracy-ending actions that could easily happen. Lucky for us, I think he's too old for this particular problem.