the citizens had to use the Chivo wallet and not some random wallet that anyone could download from the internet, it's like constricting the freedom of choice
It's really not, youare free to use whatever you like. It's just positive action to encourage this one.
I wonder if Vitalki would have similar concerns if ETH would be forced over citizens.
You're missing the point as you took that paragraph out of context.
Here you have the whole phrase:
Posted Using LeoFinance Beta
It's clipped indeed, but context doesn't change it. It's still positive encouragement, not discrimination, also, everybody is free to use any other app after receiving BTC to Chivo, as far as I know.