Well, secular humanists I’ve met would get very exercised if you used the word “sacred” around their values. Just as they get quite exercised when I tell them that humanism is a religion like any other; after all, it makes little difference whether you place a human-like god on a pedestal or place humanity on a pedestal.
As an ex-would-be-theologian, ex-Quaker, probably Zen Buddhist, I would go no further than to say they are “very attached” to their values. But attachment has something of the same meaning as religion (res + ligio, the things that bind.)
Anyway, how do we get from here back to Trump and the values of his supporters? Is Trumpismus a religion?