I dont know lets see:

1- Everyone in Europe having Healthcare FREE for Taxes they pay, vs USA where 10s of Millions have NO Health care, even though they have a Job since astonishingly in USA businesses by law are NOT required to provide Health insurance to their employees. To be exact so called ObamaCare finally mandated this, but only for companies with 50+ employees and only for Full time. And of course we have NO Government based Universal Socialized Healthcare, like Europeans have and like Israel the fav country of Republicans, Democrats and right-wing Media have, etc.

2- Everyone in Europe having access to College education FREE for Taxes they pay, vs USA where College Education can cost a back breaking $100,000 and More. Here you IDIOT:

https://www.cnbc.com/2017/07/13/heres-how-much-it-costs-to-go-to-college-in-the-us-compared-to-other-countries.html

3- Avg of 1 Mass shooting in Europe per 10 Years vs One Mass shooting after another in USA, which Republicans like Trump actually Champion and ridicule by attending NRA right after the Parkland Mass shooting which Killed record number of Students, and Obama Dems just give lip service too

Shall I go on you Trump Republican Fox brain f***d lunatic?

So that you will not a miserable Country like USA where Republican lunatics such as Trump can be elected or Democrat frauds such as Obama Clinton, as a result of which USA lacks the most basic of Social services such as Universal Healthcare what every other Developed Nation has, including Israel the Country that Republican lunatics and fraud Democrats and right-wing Media worship. So that you work on building High speed trains with your Southern neighbor as France is building with Spain, Germany with Austria, Italy, etc.. while in USA Trump in proving what psycho garbage he is is proposing building a Wall with our Southern neighbor. Shall I go on 😱

I think you have to be brain dead to ask: "Why would anyone want the U.S. to be like Europe"
Just take the case of Mass shootings in USA, there was another one few days back, the one in Santa Fe Texas were 10 Americans were KILLED. And this is just part of life in USA, as you can see: "there has been, on average, 1 school shooting every week this year"
https://www.cnn.com/2018/03/02/us/school-shootings-2018-list-trnd/index.html

Meanwhile there has been ZERO Mass shootings in European Schools this Year.

So the question you should be asking are:
"Why would anyone want to be like USA?
"Why has USA become such miserable place that it has on average 1 school shooting every week this year yet US Government does nothing about it"

Dont worry USA wont be like Europe, will continue to be a much more miserable place compared to Europe, from:
1- 10s of Millions of Americans not having something as basic as Healthcare
2- Mass shooting after another Mass shooting
3- War after War after War
because USA is under occupation by a True Parasitic Enemy within, via their control of US Media, leading to Obama being a bigger War Monger than Bush, given fact Obama waged War on 5 Countries vs 2 for Bush, yet the ultra right-wing Media in US, which has brain washed 10s of Millions of Americans not to know their asses from their heads, such as yourself, called Obama to be: "Socialist" and promised even more Wars and right-wing policies leading to psychopath Trump.

lack of education, lack of understanding, or maybe they want to be European.