I do support leaving damaging relationships, in my OP I specified minor, resolvable issues.
And who are you to decide what is and isn't resolvable?
My mother stayed with my father and had three children on the grounds that their issues were minor and resolvable. I spent my childhood seeing my parents physically beat each other up and scream and swear at each other. My mum often said she might leave. She never did. To outsiders, their issues seemed minor, too. Meanwhile, I clocked up a disconcerting number of broken bones as their anger was taken out on me and my brothers.
My mother has been the first to tell me that you must stay together with your partner, if you have children. My mother has seen my partner throw me onto the floor. She's seen my partner hit me. She's seen my partner physically wrestle car and house keys away from me, to stop me getting away. She has seen my partner abuse me emotionally.
She is so brainwashed into this idea that you accept 'minor' things, that she believes these are 'minor' issues. And to most people on the outside, both she and I had relationships that have only minor, 'resolvable' issues. All sorts of people are quick to tell me, as they told her, that it is silly to wreck a family for these issues.
I stand by the point that, if someone leaves, it is almost never for minor, resolvable issues. As an outsider, you never know what is going on. A minor issue might be indicative of much, much worse. You cannot judge.