In the long term, arguing against redistribution is the concern that productive people will be disincentivized to use their talents as much if they can't accumulate more compared to a non-redistributionist scenario.

Another argument is that in capitalist societies, someone who made a lot of money probably made it by making products people want, thus increasing general utility. This suggests that he is particularly good at figuring out how to spend money to increase utility, likely better at it then both the redistributers and whoever they're redistributing the money to.