All the tests are highly political topics centered on identity politics & social justice topics. They also have weird American classifications of ethnicity being only "Hispanic vs non-hispanic" and "race" which seems more attached to skin color vs who the person is. I tapped around other countries and saw that they used some more or less classifiers of ethnicity & 'race' but the distinction are still there. It makes me put doubts about the testing itself and how much it would be used to advance political agendas.
These tests are amusing, but I wouldn't put too much weight onto them.
I randomly picked one about attitudes towards homosexuality. Then it showed I associated some negative things with that (like "homosexuals are more often depressed" or whatever). It was not clear to me that this indicates negative attitudes on my part. Rather, I have read a lot about homosexuals having problems, so when the test presented me with such issues, of course I thought about them. That doesn't imply I think every homosexual is depressed (or whatever).
Not saying the tests are not interesting, but I think they are biased in their interpretation. They don't necessarily show what the test designers think they show.
http://implicit.harvard.edu/