Each attempt by the US government to weaken encryption with backdoors seems to teeter upon a pivotal assertion that the government can be trusted with such "keys". Forever. The Lawful Access to Encrypted Data Act introduced by Senators Graham, Blackburn, and Cotton, for example.

Might the Solarwinds hack conclusively disprove any such assertions (that the US government, if entrusted with encryption backdoors, is capable securing access to those backdoors)?

And how broad are the implications to the average American of such "keys" being stolen and widely disseminated?