Redistribution is a bad idea primarily because of economics.
People getting handouts have less incentive to be productive and people paying taxes to finance that spending have less incentive to be productive.
That translates into less economic output, which means lower living standards.
But there’s another reason to be concerned about redistribution. I worry that it erodes societal capital (i.e., the traits such as work ethic, self reliance, etc, that are associated with successful societies).
What happens, for instance, when politicians convince people that have a “human right” to other people’s money?
It would be very difficult to be optimistic about a society where most people have that mindset.