BTC is good on its own, with or without Trump, Saylor, or anyone else.
It's just that these big people tend to push the narrative/sentiment further in the minds of the people that listen to them.
You may be right about BTC is good on its own. However, without the support from Trump, there would not be a big hype that driven it to reach new ATH last year. It would not be added to the US treasury as well.
People were massively buying BTC due to the Trump's election, and his promise to add Bitcoin as a part of US reserve. His narrative pushed BTC so hard.
In fact, BTC narrative gets massive after so many big boys like Trump were pushing it. They created free promotion, adoption, and also helping in pushing BTC price too.
For the past 16 years, bitcoin has been good on its own without anyone but if we want it to become more popular and globally accepted we will need Trump, Saylor or any important figure, and especially the government.
Suppose, without government approval, would we have ETFs and billions of dollars flowing into the market every week? And without Trump, there would be no Bitcoin reserves and the upcoming global strategic Bitcoin reserve race. So I also won't deny the role of these big people in the development of bitcoin.