Under many circumstances, that would be a likely explanation, but who outside government is lobbying for this kind of invasion of privacy and what do they hope

Under many circumstances, that would be a likely explanation, but who outside government is lobbying for this kind of invasion of privacy and what do they hope to gain from it? It's certainly not the tech firms, nor other established big businesses like retail and finance that rely on encryption to operate with reasonable security. It's obviously not the human rights and civil liberties crowd. Is it clueless "think of the children" types, and the manipulative media that serve them?