Europeans tend to be pretty laid back in general and more worldly in my experience.
White girls are a mixed bag though. When I lived in the midwest where 90% of the population in our town was super white, it would be very rare for them to date outside of their race even if they were relatively open minded.
In Texas they still mostly date within their race and I've witnessed some ugliness, but a lot of the ones who live within the city limits of the major cities tend to be fairly liberal and just date whoever they want without worrying about what their family thinks. Liberal white girls are pretty awesome.
Most of my experience with Mexican girls has been let's just say, "short-term". I met one when I was in my 20's and she said that any guy she dates has to learn to speak Spanish because Spanish is the only language that certain feelings can be expressed in. Right away all my red flags went up but I started egging her on a little and saying "you know, my language has words too...would you learn them too?" to which she got a disgusted look on her face "No...why would I?"
Colombian girls though- every one I've met has been pretty damn cool.
My own culture - they tend to be pretty superficial and materialistic. I admit I've fallen for a few and there are a lot of things I like about them and there is that extra bit of chemistry with a common culture but it's almost like a business transaction to get serious with them and oh so much drama.
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Mid-40's dreamer (yeah, time flies), aged out of original DACA and didn't have a chance to apply for extended DACA after Republicans killed it on the vine. Have family petition that is now officially current but with past skeletons, is risky to move forward with AOS. Life is on hold for now until laws and/or government becomes more friendly. Life kind of sucks at the moment but like Al Bundy and the mighty cockroach, I survive.