Not really, they're more politically significant than economically critical. I've certainly never owned an american car and never plan to. We'll be fine continuing to rely on foreign companies to produce our vehicles. Foreigners certainly don't want our cars (outside of maybe tesla in the nordics, i guess?). None of this is true for the plane market, or at least not until boeing acquired its current popular reputation of not being very good at making planes (deserved or not)
The fact we bailed out the companies but refused to take ownership should be considered treason. Same for the banks, the car companies, the airline industry we bailed out for more than its entire value, etc etc. completely corrupt and incompetent governance