Businesses don't change wages based on tax credits and they don't give raises based on people's needs. Did any business cut wages when everyone got any previous rax rebates like the one for covid?
This is such a stupid worry that is just rich people propaganda meant to make people thing that UBI won't be a positive thing so people don't push for it. Just like they don't want single payer healthcare because then they couldn't use insurance as a way to discourage people from switching to better jobs.