It may be difficult to believe, but the Axis had more than a few ‘benevolent’ white supremacists (if you will) who believed that, under certain conditions, Roma and Sinti could be tolerated (or even welcomed as cannon fodder). For example:

Thus, as opposed to Jews, Himmler believed that full‐blooded Roma could potentially have a future in the German Reich, though mischlinge Roma—at least those considered “asocial” because of alleged crimes, “non‐German” customs, and itinerancy—could not.

Ritter suggested designating a territory within which the “racially pure” Roma could wander, separate from the German people but allowed to maintain their own customs. Himmler seems to have supported this suggestion, writing vaguely that the goal of legislation regarding Roma was “the regulation of [their] way of life,” not their sterilization or extermination.

Eva Justin, however, a racial researcher who worked with Ritter, disagreed with the assumption that the purer elements in the Roma population were superior. She declared that “[Roma] and part‐[Roma] of predominantly [Roma] blood, whether socially assimilated or asocial and criminal, should as a general rule be sterilized,” though she allowed that “socially integrated” Roma with “less than half [the] blood” could be accepted into the German population.

According to Justin, any degree of Roma blood merited exclusion, and a greater degree meant a larger measure of negative Roma characteristics. Another researcher, Dr. Behrendt, agreed, declaring that “All [of them] should be treated as hereditarily sick” and imprisoned and sterilized.

The oppression that Roma and Sinti suffered depended on the time, the place, and the oppressor:

The vast majority of Roma in Auschwitz died due to the living conditions or from treatment meted out by camp officials, not through an extermination policy dictated by Berlin; of the more than 19,000 Roma who died in Auschwitz, only about 5,000–6,000 were killed in the gas chambers.

Revealing the uncertainty surrounding the place of the Roma in [Fascist] beliefs, Rudolf Höss, one of the camp administrators, expressed concern over the conditions of the barracks, declaring that they were “utterly unsuitable” for a family camp. He even requested special rations for children and pregnant women.

In his testimony, Karl Stojka confirms this, stating that small children received jam with their bread. Although these rations were soon stopped, the fact that the request was submitted and granted, at least at first, demonstrates that [Fascist] policy regarding the Roma was flexible enough to be variously adapted by lower officials to be more brutal or more humane depending on their own beliefs.

Roma survivor Hermine Horvath describes a member of the SS who was “so touched” by the malnourished Roma children in Auschwitz that he procured some extra bread for them. For an unknown reason, the man was gone the following day—perhaps due to the disapproval of his superiors. In Horvath’s same paragraph, however, she writes that “the point” of the camps was “to break us […] down to nothing.”

[…]

Sometimes the Roma were kept separate from other inmates; Jewish survivor Gina Beckerman risked being shot for interacting with a Roma girl in Auschwitz. But in other camps, Jews and Roma were imprisoned together and were treated no differently.

Dutch political prisoner Anthony Van Velsen lived in the Roma section of Auschwitz for a time and described the Roma as being treated “in the same manner as the Jews.” In much of Germany and [Axis]‐occupied lands, Himmler’s edicts had little effect on the daily experience of the Roma.

(Emphasis added.)

In short, the experience of Roma and Sinti under the Axis was negative overall, but not uniformly so. While no Fascists considered the Roma and Sinti to be first‐class citizens, there was otherwise no consensus with what to do with them.

You may find this predicament comparable to that of other white supremacist régimes, such as Imperial America: should chattel slavery remain intact, or will neoslavery have to suffice? Should black folks be expelled elsewhere, such as Africa or the Dominican Republic, or can they stay here (as long as they’re useful)? Should black men be offered military service, or should they stick to something less threatening? All of these questions are nonsense to us, of course, but white supremacist régimes take them very seriously.