It is reasonable to conclude that Huawei presents some degree of threat to U.S. national security, but this threat can be mitigated without banning all forms of commerce.
Opposing U.S. meddling in Venezuela in no way requires critics to ignore, minimize, or excuse the Maduro regime’s increasingly well-documented economic and human-rights abuses.
Lower tariffs on imported goods are better for consumer welfare, regardless whether the exchange rate is floating against all currencies or is instead fixed to the U.S. dollar. Having a strong currency does not overturn the desirability of lower tariffs.