Exactly. Instead of putting backdoor in only the computer going to China, why not just install back door in ALL the chips. Cheaper too. At this point, it won't surprise if all the computer has a hard ware level backdoor such as spectr/meldown. Not to mention encryption backdoor. Even state level player doesn't have the resources to take all that out. Remember when Snowden leak came out, Russian gov switched all internal memo to typewriters that shall give you an idea.