I"m skeptical, as some of these accusations are not that far-fetched. What I'm more concerned of, is whether or not this is driven by some higher entity so that mass-hatred for the Chinese and their tech is accumulated, which would mean state driven media.
Despite all of these accusations of being one step behind, Huawei seems to be on the forefront of a lot of things - especially in the field of 5G, so it would seem possible that the US would pull some propaganda antics to make us reconsider Huawei and Chinese Tech
Its tough trying to read and discern for yourself anything on the web nowadays - as for this matter, I'm putting my thoughts on Huawei and Chinese tech on hold since I think both cases are true - That there are some concerns with tech theft against the chinese, but its also being extremely exaggerated.