It's not altruism, I'm being perfectly rationally selfish, I just prefer to help those in need and give the bad people money to stay away from me while not wasting any time and money to make the distinction.
I love how people can post-rationalise that right is wrong. It is very clever, but you are being dishonest with yourself.
It is simply wrong to take from others who work to those who cannot be bothered to work. Everything you do afterwards is trying rationalise your desire for UBI because you believe it to be virtuous.