Your data is actually wrong. For the most part, immigrants put more into the economy than they take out, especially their children. They tend to start businesses at a much higher rate than native borns, which means they pay more taxes and create jobs for others.
But even ignoring that, generally UBI doesn't apply to non-citizens. They would have to earn citizenship first, which would mean paying in taxes without getting anything out for a while.
But even ignoring that, generally UBI doesn't apply to non-citizens. They would have to earn citizenship first, which would mean paying in taxes without getting anything out for a while.