Having said that, it's not quite the same as the Nazi's systematically targetting groups because of their birth identity, and justifying it with the most spurious and evil 'scientific' doctrine imaginable. Let's not forget the Einsatzgruppen started off life rolling up to hospitals and infirmarys with trucks, in order to load patients (the disabled, and those with lifelong mental health or developmental conditions) into the compartment at the rear, where they were murdered via carbon monoxide poisoning, the delivery delivered by a hose attached to the engine. In other words, the first victims of the Nazi's policy of employing systematic murder squads were the most vulnerable.
They moved onto murdering Romani (who were politically unrepresented and unallied, with no-one to protect their legal status. The communists were rounded up and murdered as threats to the nation. The "intelligensia" of Poland and other invaded nations (actually a group of people including local doctors, lawyers, and so on), were murdered as part of a 'wartime' policy that only happened on foreign soil.
What happened to the Jews took years. Unlike the travellers and those who lived hospitals and infirmeries, these people were your neighbours and colleagues. Unlike the Communists, if you knew them, you knew them as individuals with varied political views. They had status, social and economic, that befitted a group of people who had lived on German soil for hundreds, thousands of years. They were versed in the law, literate and politically smart. All that was visible. And it all had to be eroded, and that happened piece by piece. The public were systematically desensitized to summary justice, beatings, arson, hangings by the acts of Hitler's SS and it's forebears, before the ordinary folk began to be the ones throwing stones and smashing windows. Then they removed their right to property, and all protection under the law, the right to own businessses, the right to own property, removed their status as citizens of the country. They got millions of ordinary Germans to play their part. And only later, some time in the war, did they move towards murdering them.
To return to my initial point, none of these people, Romani, Jew, the vulnerable, were targetted because of anything they had done, or anything they could do. It was because of who they were born to, and the hand nature had dealt them. It was because they were not loved and protected. Then they said they couldn't afford to keep them. And that was the final justification offered by the Nazi's for the holocaust. Due to the war, they could not afford to keep the Jewish ghettos. They 'could not' afford to feed them. They could not afford to police the ghettos. Or build more Concentration Camps. They said they needed the space, the food, the water, the manpower, the resources. And that's why the murders accelerated.
So please do not make this comparison without hearing me out on this. The lesson I took from all this, was that, if society says it cannot protect the vulnerable, it means that fairly soon, no-one is safe. Because we can afford it. Or at least, I never listen to people, who have no interest in protecting the vulnerable, who say we can't. We're a rich fucking nation, historically, as it gets. Try. Try to protect them. Because it's always a silly game, saying which group can be forgotten about. Who we all of a sudden can't protect. Because as soon as we stop believing all our lives matter immensely, then we're on that path towards saying so actually I think they all should be got rid of. That is the origin of the phrase, 'Slippery Slope'. Because that's what we saw in Europe in the 30s. It was a slippery slope. And it didn't begin with Yellow Stars. It began with people turning a blind eye to the sudden reversal of society's percieved need to protect the most vulnerable. It began by not protecting those who could not kick up a fuss, who were not listened to, or represented democratically. Getting the Jews down to that level, took years, and did indeed start in many small ways. But it wouldn't have meant very much, unless the precident had been set, that there were groups who were simply a problem, useless, drains on society, and that it was right to dispose of them, so the nation could advance into a glorious future. I do ask that people think on that before they start making such comparisons between any piece of social health policy and Nazi Germany in the 30s.