Probably not worse. Any planning will take years to hammer out. Even if the legislation is ready to go live, expect litigation that can tie things up for years. The elites can't get things their way after spending millions of dollars, they may give up. The other problem is activist and partisan judges.
Which could all change with PR.
Imagine right now you have judges. How do you get up the ladder? You have to catch the eye of a politician. Because there are two parties, judges go to the extreme and get promoted.
If you had six parties in Congress (like Germany with a 5% cut off) you would need to get the support of more than one political party, possible three or four. This would lead to better judges.
In Switzerland they have a presidency chosen from their parliament and they need cross party support. There are 7 members of the executive, with one serving a year as the head of state in rotation. Switzerland has a sensible presidency.
In Germany, with PR, they spend much less than in the US
Tax money, no limits on donations and somehow campaigns that are much cheaper than in many other countries — DW examines how German parties get their money.
www.dw.com
"In 2017, the last time Germany held a parliamentary election, parties spent €92 million ($109.6 million)"
$109.6 million for an election for a country of 80 million people. The equivalent for the US would be about $440 million based on population size.
With the election now upon us, billions of dollars have been spent across the country on Senate races. Here are the most expensive ones.
www.usatoday.com
"Ohio ranks on top of the list with more than $400 million spent between both candidates. "
One Senate seat cost that much, nearly.
Why? Because with PR you win an extra seat by getting enough voters on your side. The German election produces an indeterminate number of seats. 630 the last election, 709 the previous one.
However 630 for 49.5 million voters is 58,500 people per representative. You will need to tip the scales that much in the whole country to get one extra seat.
In the Senate, especially, you can often only need to tip a few thousand votes in the closest seats to gain a seat. They target the close races and ignore those who they feel don't matter. Not very democratic, is it?