That culture only exists today because if you ever live in poverty you develop a mindset of a vulture. You need to seize opportunity and give nothing to maximize your position because you are so far behind.
It is socially toxic, and only exists because you can fall through the bottom of society and become forgotten and discarded. It is treading water just to survive. It makes people hostile, selfish, and bitter. Plenty of studies show how poverty will change your brain chemistry for the worse.
Of course the first generation of UBI would be a trying time. It is correcting so many social wrongs at once it upsets your worldview completely. But I cannot imagine anyone beyond the first batch ever having anything but significantly increased happiness, social cohesion, voluntarism, and enterpenurism, because once you can (hate to say it) cull the damaged goods, you have a society where everyone can take risks but always keep a roof over their heads and food in their bellies, and be as generous as they want while always having a bed to sleep on. That is such a huge psychological advantage for society.
Which is kind of why I find UBI such a no brainer nowadays. You can approach it from so many angles - cultural, microeconomic, macroeconomic, social, psychological, and every one of them in and of itself has so many benefits it seems insane not to implement it at almost any cost just for those benefits alone. But they are not alone, it helps in almost every problem center of the modern world.