When people say "nothing gets done" they mean "we can't do things that a substantial plurality of the public doesn't want done" -- which is exactly what's supposed to happen.

If you break the mechanisms ensuring that stays the case, what do you honestly expect to happen the next time it's you in the minority?

Things substantial plurality of public wants are not being done. The votes in legislature dont match what plurality of voters want.

Public opinion is not really represented in a way your comment implies.