Anyone who made believable decisions would be too smart to trust anyone in this community.
To be fair, no one is really written that way in the series. It's repeatedly shown that the L.A. residents are either too vain or ignorant to realize that there's an outbreak happening in front of them. Alicia and her friends make fun of the viral video in the pilot. The rioters are initially complaining about police brutality against the homeless (which would be all well and good in normal society, but just exasperates the situation here). The rioters also ignore a man having his face chomped on by a walker, and Chris is the only one to notice. Travis and his neighbour even put their garbage out to the curb, despite the former knowing that the people across the street got eaten by a walker. It's also repeatedly suggested that there's a government conspiracy taking place, and information is being kept away from the public as much as possible.
The only one who really understands what's going on is Daniel, who states that he saw a situation like this (civil war/brutality) before and is reacting accordingly
they couldn't even sustain Tobias past episode 2 because he'd remove any reason for these dorks to be in real danger if they listened to him.
Yeah, but Tobias wasn't any more capable than these characters. Despite the fact that he had apparently researched what was happening and knew what to do, the weapon he wanted was pitifully, embarrassingly small, and instead of trying to stab Artie in the head, he stabbed him in the chest to no effect (which would have resulted in his death if Madison hadn't eventually intervened).
He's no more capable than Travis is.
so are they trying to imply that she beat nick when he was younger? and the abuse/neglect was a contributing factor to him turning to hard drugs?
In the pilot episode (the scene when she and Travis are looking through the church), she implies that drug use is something that runs in the family. I wouldn't be surprised if she was a user/drinker herself, and coupled with the dad's disappearance, it drove Nick to start using as well.