If you loan your car to someone and they commit a crime with it, you can face charges for it. If you sell your car without a termination of interest notice filed with the state and the new owner doesn't file the signed title, it is still legally your car and what the new owner does with it can get you in legal trouble.
In general if you have no reason to believe someone will commit a crime with your car, you typically can't be found criminally liable for merely loaning it out. With firearms, it's actually a federal crime to lend a firearm to an out of state resident except for lawful sporting purposes (not general purposes, like lawful self defense).
Temporary use for lawful sporting purposes. I've taken that to mean I can let my out-of-state buddy try my rifle while we're at the range, or use it while on a hunting trip together. I would be pretty careful about lending out a gun to an out-of-state resident without being present the whole time they are using it, otherwise I'd be afraid of getting into a legal battle about whether it was temporary use.
I would be quite shocked if anyone was prosecuted under 18 U.S. Code § 922 (a) (5) for a firearm loaned exclusively for sporting purposes, but this is not legal advice. Personally I can think of at least one long-running skeet/trap range that will lend out shotguns for sporting purposes without any representative being anywhere near present while you use it, and they've been on the radar in plain sight doing this for decades across thousands of people (and they'll lend to any tom/dick/harry without any scrutiny).
if your car is involved in a crime, the cops will come looking for you. maybe you can beat a conviction but you might face an uphill battle even with an attorney. but sure, it's not illegal to sell a car without transferring the title, but neither is it considered a legal sale. that is still your car as long as the title is in your name.
Sure, they'll come looking for you. Registration and titling of cars just makes that even worse, not better, for innocent people who lend out cars. If that's your argument, that's one against having registration / serial numbers / record of transferring firearms.
The police can also rake you over the coals for anything. I had a search warrant once served to me because a few corrupt DHS agents (CBP and HSI) fabricated a warrant that suggested I had drugs up my ass (not even embellishing here). Police can come looking for you for any reason they want.
Hopefully innocent people are eventually vindicated (as I was), but it's definitely better to never be identified in the first place if you're an innocent.
Arguing against regular old accountability is not a good look.
Taking a group, the vast majority of which have done nothing wrong, and wholesale holding them 'accountable' by releasing their private information is senseless and indefensible.
There is so much more to this story than you're telling us. My first thought is that there is probably a reason for that. But I'm genuinely interested in hearing more.
This is A) obviously nonsense B) does not incentivize any positive behavioral changes C) equivalent to banning re-selling your guns.
We already have the ability to prosecute people who perform straw purchases.
> the majority of straw sales are repeat offenders
Sounds like the problem lies with straw purchase enforcement, not with the entire concept of gun resale.