I have always been skeptical of Trump's promises, but I don't know, this time he seems to be honest in his words, although all these statements fall under the category of election propaganda, but let's hope that he fulfills all his promises.
Trump is an economist first and foremost, and I think he recently learned about Bitcoin and cryptocurrencies and found out their great positive impact on the economy, so perhaps this is the point that might make him fulfill his promises. As for decentralization and privacy, Trump will definitely be against cryptocurrencies.