I don't see it as a good idea, just like I don't see getting rid of the electoral college as such. I think both serve an important purpose. Having a house and senate gives us the best of both worlds and gives value to having a larger population as well as protects small states from effectively having no say.
Having the Senate as it is is the most important thing we can do. We can have anything Mitch and Trump want. How splendid!
Congress, as it exists, needs to be abolished and rebuilt from the foundations up. Some method which permits the required functional capabilities from both the House and Senate could be had.
First thing? No political parties in Congress. None. That would be zero. Instead, all Federal elections would have candidates which have a minimum number of signatures validated and yes this means voter ID's suck it up. These would be provided at no cost when there is sufficient documentation such as required for passports. Funding would be made available with no possible circumvention and that stated in the Amendment. This also would curtail freedom of speech as the courts have defined it. People may say what they please, but money is no longer speech. Want to contribute a dollar or the maximum amount? Feel free but it goes into a pot and divided among candidates. Conspiring to subvert a clearly stated intent would result in minimum mandatory sentences of not just individuals but corporate leaders. They are on the hook, no bankruptcy, no "corporations are people" for this purpose. No pacs, no dark monies, nothing at all and a mandate for all of this in legalization. Officeholders who directly support or permit such things are barred for life from office. If campaigns act in this way and decide that plausible deniability is good enough? The candidate is barred for 4 years from any federal office or position.
The way the rules work must change. No "winner take all" as there are no parties, remember? Instead, the whole body decides on new ways of determining rules and oh, no current officeholder or party official is eligible to weigh in at all. Tampering is a felony in the first degree and there are no closed-door sessions. They will go to prison and the power to pardon changed and limited as well.
No person holding Federal office may lobby for pay or otherwise. Not one cent, nor may they gain employment for themselves or immediate family member in any company or interest for which they played advocate.
There will be a proportionate representation. However many are elected from each state will be from among the top winners in the election. If ten people represent a state then the top ten hold office. Anyone who accepts any compensation greater than a once per year donation in any form greater that has a real market value greater than $100 but less than $500 once per year will be censured. From $500 to $1000 or a second lesser offense, sanctioned and removed from any committee for a period of one year. For a third offense of the least infringement, a second of the $500 to $1000 or any of greater than $1000 will be subject to the following- a fine of not less than 10k and not more than 100K, payable immediately upon being found guilty.
A two term limit.
Lots and lots more including a muzzle on the Oval Office.