The expression 'gun buy-back' as used by Kamala Harris and other leftists makes no sense. If I sell you something, I am free to attempt to buy it back from you, and you are free to refuse to sell it to me. But I didn't buy my guns from the government; I bought them from reputable gun dealers in compliance with all the federal, state, and local regulations. So the government can't buy them back from me. That is ruled out by the very sense of the phrase 'gun buy back.'
More importantly, if the dealer wants to buy back my gun, I am free to say No. But I am not free (in the same sense) to say No to the government when they try to confiscate my firearms. There is of course a distinction between voluntary (non-coercive) and involuntary (coercive) gun buy backs, to acquiesce for the nonce in that asinine phrase. But what Kamala Harris and her ilk mean is the second kind.
'Federal gun buy-back' as used by Harris and her ilk is an obfuscatory phrase designed to confuse and trick the populace. In plain English, it amounts to COERCIVE CONFISCATION with monetary compensation.
When I call leftists moral scum, part of what I mean is that they misuse language to trick and confuse people. Decent folk don't do that. They say what they mean, and they mean what they say.
Now you may not like my calling leftists ‘scum,’ but you have to realize that we are engaged in a war with them for the very soul of the nation. In a war behavior impermissible in peace is justified. If they don’t like being verbally abused, then they should refrain from verbally abusing us as they regularly do with such epithets as ‘white supremacist,’ ‘white nationalist,’ ‘sexist,’ ‘racist,’ ‘homophobic,’ ‘Islamophobic,’ etc.
Leftists are stealth ideologues. They don't say what they mean, and what they mean is not what they say. Recent statements by Harris, reliably vaporous and inane as her public statements are, show her to be just this sort of weasel.
If leftists were intellectually honest, that would be one fewer reason for people to buy guns.
There are also questions about the efficacy of so-called gun buy backs in combatting crime.