"Wealth redistribution" occurs any time money or value is transferred from one person to another. The free market causes wealth redistribution; that's the whole point of it.
Certainly, if I give you a hoist trolley (my spare) in exchange for $200, this is a transfer of wealth.
But this is not what we mean by the phrase "wealth transfer" in a political context. It's about
government taking money from Peter in order to give it (in the form of services or goods) to Paul.
IMO, when people bemoan wealth redistribution, it's not usually redistribution in general that they're opposed to, but redistribution that benefits someone other than themselves.
Well, of course, that is a common lament. Many of us who pay very high taxes don't want to see it
wasted on those who don't pay their own way, but could. But that is not the only motive.
Wealth transfer fuels the nanny state, which has a corrosive effect on productivity & independence.
I have an analogy:
I break into your house, & open your safe to find $100,000.
(I know you're loaded. Don't deny it.)
You cry, "Oh, please don't take it all! I have boat payments to make!".
I say, "OK, boats are cool. You may keep $20,000, & I'll take only $80,000.".
A libertarian would say: "I just stole $80,000 from you."
A leftish type would say: "I just gave you $20,000 of wealth distribution."