I am pretty sure that memes had nothing to do with it. The internet is frequently overestimating its influence. I'm always amused when people say "don't mess with the internet!!!", as if the internet could have an actual impact on anything. One person IRL with proper skills and contacts can get things moving 10 times as fast, than a brigade of 10.000 shitposting degenerates. Numbers =/= power. Most of the memeing edgelords probably weren't even legal voting age, or didn't vote for trump, or were spread out over countries that aren't the US.