The whole point of the bill of rights and many parts of the constitution is to protect ourselves from mob rule... just because 50.1% of the people think it is ok to remove the rights of 10% of the people doesn't mean they are allowed to do that. We have a lot of checks against the 'will of the majority'
Congress was elected. If they are doing a bad job, the voters can recall them. There's no need for lower officials to deal with them.
If the majority of the voters are wrong, then your "democratic nations of laws" is dead.