I think in the general case you're describing, it seems like law enforcement & strong arm politicians are generally leading the charge. Others pick it up from t

I think in the general case you're describing, it seems like law enforcement & strong arm politicians are generally leading the charge. Others pick it up from there, top down in fancy slogans, like law & order, tough on crime, or scare tactics etc. It's part of the prison industrial complex - make many things illegal, jail who you want, get a kickback, bonus if you end up disenfranchising them in the process. This specific case is closer to outlawing encryption - the government doesn't fully understand or care about this product's uses but suspects it could make it harder for them to do what they want.