Why is everything 'really' made in China? Because it is easier there to implement hardware backddors for surveillance and illegal remote attacks:
https:// www.technologyreview.com/s/519661/nsas-own-hardware-backdoors-may-still-be-a-problem-from-hell/
Why was Blackberry destroyed? Because BB had secure, encryted communication and data storrage. No access for the sniffers:
https:// help.blackberry.com/en/blackberry-security-overview/latest/blackberry-security-overview/ada1406165491914.html