If my options at the border were to give someone full unsupervised access to my entire digital life or refuse and be inconvenienced for several hours it outright denied, I'd much rather give them something I can throw away after.

I know I'm not important, but my data is, to me. If I took your toothbrush to a back room for an hour without telling you what I'm going to do with it, would you still use it?

After reading the occasional story about Chinese [0] and US border BS every now and then, for years, I just don't want to take that risk.

[0] Chinese Border Police Install Software on My Android Device - https://news.ycombinator.com/item?id=17249590

Which part sounds paranoid to you?