he's not an influencer so he won't provide support all the time, especially now that he's officially been inaugurated as US president. Of course there are many things that are much more important than crypto or Bitcoin. Support doesn't mean you have to tweet every day, making a positive policy towards crypto is enough because he is currently the head of government of the strongest country.
I quite agree with you on all you said but to be honest I think he should have done more than tweeting to show support like you said, we all know he has other important things to attend to but the energy he has channel to creating his own coin should have been used to make Bitcoin price go higher than it is now, I'm more concerned about the way Bitcoin price went up when he won the election and it should continue to go up when he was inaugurated but still nothing positive happened which is to say he's done with promoting Bitcoin so let him go for his own since he has gotten what he wanted.