EU has done really well on passing big laws such as GDPR in the recent years, while the US can't even seem to decide whether to fund their own government. Why do you think Europe is doing better than the US? One would think that since EU is more diverse it would be harder to find common ground. And there were examples of that during the Greece debt crisis. But not anymore, it seems.
Well, lobbyists don't fund campaigns, they seek to influence for cash.
There are loads of shady things going on in the EU agriculture sector, the US doesn't have a monopoly on shady lobbyists.
https://www.politico.eu/article/copa-cogeca-farmering-lobby-europe/
Pharma is by far the biggest spender on lobbying
https://www.statista.com/statistics/257364/top-lobbying-industries-in-the-us/