No quite, it's true there are few of them today (well, 1.5 million worldwide).
But before the WW2 they were the majority, for most people they were the Jews, and actually they lived mostly in cities and towns.
BTW those people and those prostitutes are doing nothing wrong. It should be add that Israel has decriminalized prostitution, in contrast to some, let's say backward countries like Ukraine, the UK and the US.
This below was written by a policeman in Kazimierz (the place where the Remuh Cemetery is located) - Franciszek Banaś. It shows a quite a different place and much darker that myth makers want it to be today.
The policemen on the photo above is not him unfortunately, although probably they knew each other. That man is an off-duty policeman hired to keep the peace at the entrance to the cemetery.
They had two convents of the Servants of the Poor there. In both, under the mendacious cover of pauperisation lived people who landed at the bottom of abyss, women and men, destroyed morally and physically. They pretended to be poor but in fact all they were, let's say, emeritus thieves and emeritus prostitutes, derailed people.
Young and old, they did nothing but roamed the city all day trying to steal anything they could, for booze of course.
The convents gave them breakfast, dinners, and suppers. [...]
They had large rooms there, full of wood bunks. Those people slept on them side by side, or rather drank booze or denatured alcohol. Later at night old scores were settled and knifes fights began, and then the police would come.
If a big fish visited Kraków the police used to surround the convents at dawn and arrest those men and women [the streets looked nicer without them]. [...]
When the French Marshal Foch paid a visit, I counted only the beggars brought by the police, and there were 500 of them.
Beggars at the entrance to the Remuh Cemetery:
In the period between 1921 and 1935 Kazimerz's population probably was about 45 thousand people.
This bunch of people had nothing else to busy themselves about except trading, racketeering, thievery, prostitution, and black marketeering. It was a rich place. The Jews had lots of gold, foreign monies, shops were full of goods.
In Kazimierz four Churches, ten synagogues and a Reform synagogue could be found. Only compassion couldn't be found there, among those people.
There were lots of poor people, both Jews and Poles who slept in cellars, stalls, entrances to buildings, corners. When winter came they went into the sewers because it was warmer there.
There were Cheders there. [...]. They maintained iron discipline in them, didn't spare the rod. When on duty I [frequently] saw a rebe pummeling his pupils with a stick.
In my opinion Kazimerz, with its inhabitants, customs, traditions and economy was a state within a state.
Jewish street sellers in Kazimerz: