The US is also shockingly institutionally paralyzed and unable to make meaningful reforms in any area, even if they are very popular with the majority of voters. The last one I can think of was ObamaCare, which was not a particularly radical change, but felt like it because of how difficult it was to pass.
It's not particularly interesting to ask "why can't we reform digital privacy laws" -- the more interesting general question is "why can't we reform anything".