
In terms of people’s own ideology, that’s everywhere, really.
The upside of seeing sexual orientation as irrelevant outside sex and romance is that one has no tendency to assume that just because somebody has a specific sexual orientation, that means they think in a specific way (which is just a variant of “they’re all the same”), most notably in terms of Politics. This stands in contrast with what you see mainly in Anglo-Saxon nations.
So once one looks at the world like that it’s obvious that people whose sexual orientation is one of the less common ones are just as likely to be Nazis as the rest.
The difference in The Netherlands versus other countries is on how free people feel to let society know what their sexual orientation is, rather than the proportion of those who are gay and have Nazi beliefs being higher in The Netherlands than elsewhere - in other words people who have Nazi beliefs there and who happen to be gay are more likely to let others know that they’re gay than elsewhere.
That’s the thing: Prejudice is always bad, be it directly (presuming people are somehow worse or lesser than others based on some characteristics they were born with) or indirectly (presuming people are somehow better than others based on some characteristic they were born with, which means the evil types which are found amongst those people just as much as amongst the rest, get away with far more evildoing than otherwise: a great example of this being how Zionists have taken things to the point of committing Genocide because for decades they were leveraging “positive” prejudices about people who are Jewish to get away with doing seriously evil shit).
That’s why I really like the Dutch take of “those things are irrelevant for judging the character of a person” when it comes to sexual orientation - it totally avoids prejudice in any form, both the obviously bad prejudices AND the supposedly positive but in practice also negative, just indirectly.
People are people are people - best not presume things about them based on traits that have nothing to do with how good or bad they act, even “nice” presumptions.