The referenced law isn’t “red flag laws,” those are something else in which simply reporting “my roomate or ex said bad things, proof? No why would I need that, take the guns first due process second, you heard Trump!”
Problem is, people do have rights, and as such before you can violate them you have to actually have a reason, like “them being involuntarily commited for hearing vioces and expressing homicidal ideation.”
Red flag laws are written in such a way that your roomate can call them on you because he’s mad you ate the last Oreo™, so the cops come and take your right to own guns after a secret hearing you weren’t invited to, but it’s ok because you will have the almost impossible opportunity to prove “nuh uh” in court 1 year after the date of arbitrary confiscation, unfortunately by then the cops may have already “destroyed” (read: stolen) the property they’re now supposed to return so even if you do win that case: Oh well, no punishment for the cops, they can shoot innocent people with impunity, you think they’ll get talked to for theft?
Of course that gets pushback, just like any other bad idea Trump supported (albeit from a different group in this case). Most people are however fine with the law we already have that could have prevented this, problem is people need to do their goddamn job and should have taken his shit/input his commital to NICs.