You should be loyal only to the extent that the loyalty helps some interests of yours. That is if the car industry ensures military equipment should you need it. (or alternatively you are going to war and don't want them to have the expertise that a car industry has).

For those not paying attention to geopolitics, Taiwan is the real concern here. China wants to control them, and is building a strong military. How the future will play out I don't know, but this should be your concern.

also, DAF was large in a very specific time in a very specific place. Let's not forget that the dutch car industry has always being dependant on german car industry.