Let's suppose that hypothetically the Flipper Zero could be banned...
OK, so then what about the (Texas Instruments) TI CC1101 rf (Radio Frequency) Transceiver chip/IC that powers it?
Is whoever is going to ban the Flipper Zero also going to ban the TI CC1101 rf transceiver chip?
Because if they don't -- then many other clones of the Flipper Zero can and probably will exist in the future...
OK, but let's take things a step further...
Let's suppose that whoever is trying to ban the Flipper Zero -- is able to ban the Flipper Zero AND the TI CC1101 rf transceiver chip that powers it!
OK. So what about all of the other rf transceiver chips that exist?
Is whoever is going to ban the Flipper Zero -- going to also ban ALL other transciever rf chips?
But let's take things a step further...
Let's suppose that whoever wants to ban the Flipper Zero -- also is able to successfully ban ALL transciever rf chips! (Highly unlikely, since many are used in highly popular consumer products including but not limited to Routers, Smart TVs and Cell Phones!)
But let's suppose they could pull that one off...
OK, so now the next question is (to the party or parties that wish to ban the Flipper Zero!), if you can successfully ban all of the rf transciever chips, then can you ban all non-IC based radio circuits?
You know, like analog electronic radio circuits, capacitors, coils, antennas, stuff like that?
Can you ban all of it at the same time?
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But let's even go a step further... let's suppose whoever wants to ban the Flipper Zero -- bans it, and also successfully bans all rf transciever IC's, and all analog radio circuits, and all previously analog electronic parts for making a radio circuit...
OK, so final question (to whomever would wish to ban the Flipper Zero!):
Can you ban all of the electrons, which flow through wires, which could be used in creating radio circuits?
To accomplish this, you'd need to ban all batteries, all power lines, and all generators! (Highly unlikely, because power in is various forms creates transactions which in turn create taxes which in turn fuel local, regional, state and country governments!)
So -- good luck with all of that!
I myself would never use a Flipper Zero for unlawful purposes (if I possesed one), and I would never drive a car which could be rf hacked by a Flipper Zero or other rf device on the other side of things.
In other words, both sides of the argument are stupid.
A person could probably kill someone else with a pillow, a roll of paper towels, or some other incredibly soft object, "never before did we think that it could be used as a murder weapon" item (George Carlin: "You could probably kill a guy with the Sunday New York times by beating him to death with it if you were so inclined")-- but we don't pass laws banning those items because of an isolated case of misuse!
Heck, now that I think about it, someone could probably kill someone else with a single roll of the softest toilet paper -- if they really put their mind to it!
But we don't pass laws banning ultra-soft Charmin(tm), now do we? ("A gang of 12 or 13 year old youths used it to murder their parents -- so it must be banned!" :-) )
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Point is, there are some really stupid arguments being advanced here...