I am not a person of colour and I am not married to a person of colour...but my point was not that there isn't racism in other countries. My point is the exact opposite. There will be good and bad people wherever you go and that just because a place says it's "more accepting" doesn't mean that's actually the case. My point was that it's not as black and white of a study to outright ask people if they are accepting as research providing data on murder rates. it's comparing apples to oranges. The only way you can truly tell how accepting a culture/community is with the lowest margin of error possible is to speak to people in that community about their experiences (which is something that this forum won't be able to provide you in most cases, unfortunately, as the majority of us will not have lived in the areas you're looking at).
With all due respect, the questions that are reported in that study is, overall, "A study by the European Commission asked EU citizens how comfortable they would feel if their child pursued a romantic relationship with a person from a different cultural background or faith." (I legitimately pulled that from the article you posted) so, as far as that article covers, the questions are legitimately "Would you feel comfortable if your child was in a relationship with **fill in the blank ethnicity**?". It didn't mention at all mirroring individuals' experiences (the only examples I can see, unless I've missed them, are specifically down to one particular question with specifics changed to different ethnicities.
May I ask if you've lived in any countries in Europe other than the UK?
It's a given that most people understand no place is perfect and the best of countries have some sort of anti-social behavioral problems, but that's not the issue up for debate. And we are on the same page how important it is to talk to people about living somewhere and what that place might offer. The topic at hand is where to move to that has greater instances of progressive behavior in regards to ethnic inclusivity. And not once did I, or would I suggest we should use the subjective information of a country's "opinion" about it's self, on where they stand on racist ideology.
Information should be gathered from a cross section of sources. And in this case one of the very best learning sources is to speak to people of color, or multi-ethnicity couples and learn how they have been treated while visiting and living abroad in a particular country. And there are posters on this site who happen to be in mixed marriages. Nothing wrong with speaking to the indigenous inhabitants to get a sense of their comfort level with ethnicity diversity at home. But when discussing and learning about women's concerns for example, it's logical to go to a cross section of women for their experiences.
And the same thing apply when understanding issues about racism. I don't believe a Caucasian person who has not been in a long term committed mixed relationship can truly understand and grasp the complexity of this topic unless of course they have experienced racism or their partner has. They can feel empathy, but can they truly appreciate the concerns someone might have about a racist society considering the fact they are limited to secondhand knowledge on the subject? Too much information is missing for them to really comprehend what takes place on a daily basis. Definitely is not a matter of shades of grey either a circumstance has happen or not.
I think you were unknowingly looking at the Harvard Study as the primary focus in my search for information, when if you reread my posting it was important to me to find facts that either confirmed the findings of various sources or one that could give me additional data to increase my odds of making a well informed decision.
That study while having some flaws just gives confirmation to other sources. That Study points out that the UK is one of the least racist countries in Europe. Maybe you might disagree with that finding? But many people I have spoken with before I ever visited the UK agreed that the UK is indeed a welcoming place for all ethnicities. I came to that same conclusion after several stays in the UK which is one reason among many why it's disappointing the UK is not our retirement country. But in any case I really do appreciate your kind words and the thoughtful interest you have put forth on this subject.