Nobody knows why Trump does most of the shit he does. Even when he launched his NFTs collection(s), it was totally unexpected. Even his defi project ~World Liberty came as a huge surprise to everyone. The memecoin as well, completely out of the blue. I would imagine that it is done by people in his team to take advantage of his influence and use it to extract as much liquidity as they can from people.
A business man and a politician in one person some of the things he does for profits shouldn't be unexpected. The thing is that D. Trump has always known when and how to dress for the party and taking advantage of every open opportunity, in all of these it has always worked for him. Here's another memecoin project of his and shocking enough he holds 80% of the tokens which clearly means that a significant dump has to come from his wing
Yes, that is as expected. In 3 months, those 80% of the supply that you mentioned will be unlocked to Trump and his team at which they would have the opportunity to dump on the market and extract as much value as possible. If we are being honest with ourselves, a president has no business launching a memecoin. Otherwise we'll have all countries and their president launching memecoins too.
If Trump and his team believe in the TRUMP token, they'll unlock it in 3 years instead of 3 months and maintain their vested interest to see it succeed.