There's good reason: Huawei is entirely owned by the Communist Chinese government, a government which has shown itself to be committed against American interests and democratic interests around the world, and a government which has itself ordered Huawei to use its technology to spy on its political enemies.[1][2]
1. https://foreignpolicy.com/2021/04/30/huawei-china-business-r... 2. https://en.wikipedia.org/wiki/Criticism_of_Huawei#Espionage_...