Your assumption that he didn't meme his way into the nomination and therefore the Presidency and the fact I have to spell this out for you is what got you a dumb rating.
H.W.B was the third term of Ronny thus disproving everything else you wrote.
Good not paying attention to Presidential history since WW2.
Are you dumb, or just pretending? Trump got the nomination for two reasons and neither had anything to do with memery on his part:
1 - The democrats and MSM gave Trump overwhelmingly more focus during the primaries than any other candidate, because he was seen as the 'weakest' candidate, and therefore they were setting up a 'soft' opponent for Hillary to take down. A big part of why he got the nomination was because they were sure they could destroy him with old scandals and drive off the religious conservative bloc from voting for him.
2 - A not insignificant part of why Trump became popular with people is because he was the 'non-mainstream' candidate. People who were still angry about Ron Paul losing out on the nomination jumped to support Trump because he carried a lot of the same kinds of promises and 'a totally different approach to the White House' that Ron Paul had. Whether this would have been enough to secure him the nomination without the MSM picking him, though, it's hard to say. That's not him memeing, that's him saying "the establishment is corrupt and broken and I'm going to replace all of it" which is basically what the Tea Party was about before it fizzled out.
As for H.W. he got elected because he was Reagan's VP. Reagan was ludicrously popular, clocking in with something like a 70-75% approval rating as he was going out (but he averaged super high approval ratings unlike Obama, who could hardly crack 50% until he suddenly jumped up there in 2016). H.W. promised more of what people loved, so they voted for him because they couldn't vote for Reagan again. He also promised 'read my lips, no more taxes' and then immediately voted in huge taxes, which infuriated his voter base. Thus, he is one of only two modern presidents to
not get re-elected.
My point stands as it was before. Every two terms the parties switch, unless either the previous president is
ridiculously popular (basically doesn't happen) or the current president manages to infuriate not just the country as a whole, but specifically his own voter base. Ergo; Trump won the presidency as soon as he made the nomination, and short of finding a way to spectacularly explode in flames so bright that he infuriates his own voter base before November, he's almost certainly going to be re-elected.
Most likely, the president after him will be whoever the Dems nominate in 2024. If it isn't, it'll only be because Trump gained so much popularity in his second term despite the MSM sabotage that people would vote for him a third time if they could, and the GOP candidate runs as 'the next best thing to a third term of Trump'.