The big thing for me is there is always stuff to worry about. I think the degree to which liberals are freaked out about Trump, is probably comparable to the degree to which conservatives were freaked out about Biden. In this case, I do think there are active, avowed attempts to undermine the established federalist status quo. I'm more or less a federalist, so naturally I look upon such attempts with some degree of concern, but I also don't think its nearly as serious as a lot of other liberals do. In fact, I suspect we could do with some pruning, not that I necessarily trust Musk et al to do it with greater discernment than teenage boys.
I think most people seriously underestimate how ridiculously metastable and enduring the postmodern globalized paradigm can be, relative to previous historical paradigms - especially for the hegemon. One could argue trade wars could temporarily tank that stability, but ultimately I'm not that worried - largely because I sense little utility in being worried.