Freedom of speech makes representative politics a market, where effort is a key currency. You may dislike markets in general or think they are inappropriate in some situations, but they are an inevitable consequence of individual liberties.
What do you want me to say? Throw away the constitution because congressmen are idiots, lets do direct democracy and all pretend we're experts on everything? Nobody can be informed on everything; anybody who thinks they are is obviously an obvious idiot who doesn't know his own limitations. No, direct democracy sucks for anything much larger than a canton, and certainly for any group with interests as serious and diverse as America's. What we have now is far from perfect, but it works reasonably well and I wouldn't throw it away in exchange for a nuclear-armed ochlocracy.
The mere thought of that sends shivers up my spine.
I vehemently disagree. America is a representative democracy. We vote for representatives in the legislature and other parts of government who are responsible for the "everything". All the regular people have to do is vote for whichever representatives they think will do a good job. There is no obligation that everybody be informed in all matters concerning how to run a country. Even congresspeople have specializations: https://en.wikipedia.org/wiki/List_of_United_States_Senate_c...